Which four actions should you perform in sequence?

Explanation/Reference:
Note:
* (step 1) If you already installed and configuredSharePoint Server 2013 and you would like to try out Project Server 2013features there’s no need to install another SharePoint server. You can simply integrate between Project Server 2013and SharePoint Server 2013using an existing site collection.
Project Server 2013runs as a service application underSharePoint Server 2013. In order to integrate between those products,Project Server 2013must be installed on each application server in your SharePoint farm.
Reference: Add an application server to a farm in Project Server 2013
* (step 2) First thing that has to be done after installing Project Server 2013 is to run the SharePoint Products Configuration Wizard. The wizard has to run onall application servers in your farmbefore you can start using Project Server.
* (step 3) Start the Project Server Application Service.
Create a Project Server service application. Open SharePoint 2013 Central Administration ->Application Management ->Manage service applications – >New ->Project Server Service Application.
Specify anamefor the service applicationand choose an application pool.
* (step 4)
Create a Project Web App database. Open the SharePoint 2013 Management Shell and
Use the following PowerShell cmdlet: New-SPProjectDatabase -Name DatabaseName -ServiceApplication “ServiceApplicationName” – DatabaseServerSQLServerInstance -Tag String.
For example: New-SPProjectDatabase -Name ProjectWebApp1 -ServiceApplication “ProjectServiceApp ” -DatabaseServer sp2013srv -Tag “ProjectWebApp1DB”
Reference: How to integrate Project Server 2013 with SharePoint Server 2013