Finding the Fourth Proportional to 929,503.72, 1,282,711.50 and 521,604.52

Step by Step Solution

1. Step 1: Write the proportion equation
   929,503.72 : 1,282,711.50 = 521,604.52 : x
2. Step 2: Convert to fraction form
   929,503.72/1,282,711.50 = 521,604.52/x
3. Step 3: Cross multiply
   929,503.72x = 1,282,711.50 × 521,604.52
4. Step 4: Simplify right side
   929,503.72x = 669,068,116,255.98
5. Step 5: Solve for x
   x = 669,068,116,255.98/929,503.72
6. Step 6: Final answer
   x = 719,812.20