Finding the Fourth Proportional to 929,502.72, 1,282,710.12 and 521,603.52

Step by Step Solution

1. Step 1: Write the proportion equation
   929,502.72 : 1,282,710.12 = 521,603.52 : x
2. Step 2: Convert to fraction form
   929,502.72/1,282,710.12 = 521,603.52/x
3. Step 3: Cross multiply
   929,502.72x = 1,282,710.12 × 521,603.52
4. Step 4: Simplify right side
   929,502.72x = 669,066,113,731.62
5. Step 5: Solve for x
   x = 669,066,113,731.62/929,502.72
6. Step 6: Final answer
   x = 719,810.82