Let's get this math done. We have 972 and we're going to multiply it by 4. This is the same as taking 972 and adding it to itself 4 times.
Step 1: 0 + 972 = 972
Step 2: 972 + 972 = 1944
Step 3: 1944 + 972 = 2916
Step 4: 2916 + 972 = 3888

So, 972*4 = 3888