Finding the Fourth Proportional to 3,632.28, 5,423.72 and 3,426.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,632.28 : 5,423.72 = 3,426.96 : x
2. Step 2: Convert to fraction form
   3,632.28/5,423.72 = 3,426.96/x
3. Step 3: Cross multiply
   3,632.28x = 5,423.72 × 3,426.96
4. Step 4: Simplify right side
   3,632.28x = 18,586,871.49
5. Step 5: Solve for x
   x = 18,586,871.49/3,632.28
6. Step 6: Final answer
   x = 5,117.14