Finding the Fourth Proportional to 814,952.88, 1,223,233.83 and 611,842.55

Step by Step Solution

1. Step 1: Write the proportion equation
   814,952.88 : 1,223,233.83 = 611,842.55 : x
2. Step 2: Convert to fraction form
   814,952.88/1,223,233.83 = 611,842.55/x
3. Step 3: Cross multiply
   814,952.88x = 1,223,233.83 × 611,842.55
4. Step 4: Simplify right side
   814,952.88x = 748,426,499,677.30
5. Step 5: Solve for x
   x = 748,426,499,677.30/814,952.88
6. Step 6: Final answer
   x = 918,367.82