Finding the Fourth Proportional to 865,632.27, 1,304,356.98 and 711,317.55

Step by Step Solution

1. Step 1: Write the proportion equation
   865,632.27 : 1,304,356.98 = 711,317.55 : x
2. Step 2: Convert to fraction form
   865,632.27/1,304,356.98 = 711,317.55/x
3. Step 3: Cross multiply
   865,632.27x = 1,304,356.98 × 711,317.55
4. Step 4: Simplify right side
   865,632.27x = 927,812,018,897.78
5. Step 5: Solve for x
   x = 927,812,018,897.78/865,632.27
6. Step 6: Final answer
   x = 1,071,831.59