Let's roll up our sleeves and solve this. We have 284 and we're going to multiply it by 4, essentially adding 284 to itself 4 times.
Step 1: 0 + 284 = 284
Step 2: 284 + 284 = 568
Step 3: 568 + 284 = 852
Step 4: 852 + 284 = 1136

So, 284*4 = 1136