Finding the Fourth Proportional to 710,443.86, 980,070.72 and 516,551.10

Step by Step Solution

1. Step 1: Write the proportion equation
   710,443.86 : 980,070.72 = 516,551.10 : x
2. Step 2: Convert to fraction form
   710,443.86/980,070.72 = 516,551.10/x
3. Step 3: Cross multiply
   710,443.86x = 980,070.72 × 516,551.10
4. Step 4: Simplify right side
   710,443.86x = 506,256,608,493.79
5. Step 5: Solve for x
   x = 506,256,608,493.79/710,443.86
6. Step 6: Final answer
   x = 712,592.00