Let's roll up our sleeves and solve this. We have 941 and we're going to multiply it by 4, essentially adding 941 to itself 4 times.
Step 1: 0 + 941 = 941
Step 2: 941 + 941 = 1882
Step 3: 1882 + 941 = 2823
Step 4: 2823 + 941 = 3764

So, 941*4 = 3764