Finding the Fourth Proportional to 957,663.83, 1,321,542.05 and 522,072.15

Step by Step Solution

1. Step 1: Write the proportion equation
   957,663.83 : 1,321,542.05 = 522,072.15 : x
2. Step 2: Convert to fraction form
   957,663.83/1,321,542.05 = 522,072.15/x
3. Step 3: Cross multiply
   957,663.83x = 1,321,542.05 × 522,072.15
4. Step 4: Simplify right side
   957,663.83x = 689,940,296,748.55
5. Step 5: Solve for x
   x = 689,940,296,748.55/957,663.83
6. Step 6: Final answer
   x = 720,441.01