Finding the Fourth Proportional to 1,253,814.71, 1,730,270.69 and 680,854.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,814.71 : 1,730,270.69 = 680,854.88 : x
2. Step 2: Convert to fraction form
   1,253,814.71/1,730,270.69 = 680,854.88/x
3. Step 3: Cross multiply
   1,253,814.71x = 1,730,270.69 × 680,854.88
4. Step 4: Simplify right side
   1,253,814.71x = 1,178,063,243,007.47
5. Step 5: Solve for x
   x = 1,178,063,243,007.47/1,253,814.71
6. Step 6: Final answer
   x = 939,583.20