Finding the Fourth Proportional to 923,976, 1,275,086.88 and 500,040

Step by Step Solution

1. Step 1: Write the proportion equation
   923,976 : 1,275,086.88 = 500,040 : x
2. Step 2: Convert to fraction form
   923,976/1,275,086.88 = 500,040/x
3. Step 3: Cross multiply
   923,976x = 1,275,086.88 × 500,040
4. Step 4: Simplify right side
   923,976x = 637,594,443,475.20
5. Step 5: Solve for x
   x = 637,594,443,475.20/923,976
6. Step 6: Final answer
   x = 690,055.20