Finding the Fourth Proportional to 792,128.55, 1,188,047.03 and 492,072.15

Step by Step Solution

1. Step 1: Write the proportion equation
   792,128.55 : 1,188,047.03 = 492,072.15 : x
2. Step 2: Convert to fraction form
   792,128.55/1,188,047.03 = 492,072.15/x
3. Step 3: Cross multiply
   792,128.55x = 1,188,047.03 × 492,072.15
4. Step 4: Simplify right side
   792,128.55x = 584,604,853,892.85
5. Step 5: Solve for x
   x = 584,604,853,892.85/792,128.55
6. Step 6: Final answer
   x = 738,017.65