Please follow the below simple steps :
STEP 1 : Visit Plus.Google.Com and log in with your Google account.
STEP 2 : Now click on Home button and then select the option Pages(see the image below for help).
STEP 3 : Now Click on Create a page button (follow the image below).
STEP 4 : Now select a category for your Google+ page and go to the next step.
STEP 5 : In this i.e final step you need to Choose a Name for your Page and Click on Continue by agreeing to the Pages Terms of Google..
Your Google+ fan page is ready now. Now you need to manage your page by providing the essential details about your page.
You are ready to use your Google+ page for your business or whatever purpose you want.