Finding the Fourth Proportional to 663,061.45, 994,599.09 and 530,782.57

Step by Step Solution

1. Step 1: Write the proportion equation
   663,061.45 : 994,599.09 = 530,782.57 : x
2. Step 2: Convert to fraction form
   663,061.45/994,599.09 = 530,782.57/x
3. Step 3: Cross multiply
   663,061.45x = 994,599.09 × 530,782.57
4. Step 4: Simplify right side
   663,061.45x = 527,915,861,109.86
5. Step 5: Solve for x
   x = 527,915,861,109.86/663,061.45
6. Step 6: Final answer
   x = 796,179.39