Review the summary information and if it's correct, select option #5, Start Installation, and then click OK. If it's not correct, go back and make the necessary corrections then start the installation.
The terminal window displays the output of the installation routine. Depending on how many packages are required to be installed and your network connection to external repositories, the install can take between 5 and 30 minutes. Installation output should end with the following message:
Please configure your App Center by navigating your internet browser to:
Installation cannot finalize until configuration is complete.