Finding the Fourth Proportional to 957,342.03, 1,321,114.89 and 521,763.31

Step by Step Solution

1. Step 1: Write the proportion equation
   957,342.03 : 1,321,114.89 = 521,763.31 : x
2. Step 2: Convert to fraction form
   957,342.03/1,321,114.89 = 521,763.31/x
3. Step 3: Cross multiply
   957,342.03x = 1,321,114.89 × 521,763.31
4. Step 4: Simplify right side
   957,342.03x = 689,309,277,896.69
5. Step 5: Solve for x
   x = 689,309,277,896.69/957,342.03
6. Step 6: Final answer
   x = 720,024.04