Finding the Fourth Proportional to 3,969.06, 5,957.28 and 2,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.06 : 5,957.28 = 2,022.72 : x
2. Step 2: Convert to fraction form
   3,969.06/5,957.28 = 2,022.72/x
3. Step 3: Cross multiply
   3,969.06x = 5,957.28 × 2,022.72
4. Step 4: Simplify right side
   3,969.06x = 12,049,909.40
5. Step 5: Solve for x
   x = 12,049,909.40/3,969.06
6. Step 6: Final answer
   x = 3,035.96