Finding the Fourth Proportional to 1,139,008.18, 1,571,570.61 and 680,033.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,008.18 : 1,571,570.61 = 680,033.62 : x
2. Step 2: Convert to fraction form
   1,139,008.18/1,571,570.61 = 680,033.62/x
3. Step 3: Cross multiply
   1,139,008.18x = 1,571,570.61 × 680,033.62
4. Step 4: Simplify right side
   1,139,008.18x = 1,068,720,851,003.91
5. Step 5: Solve for x
   x = 1,068,720,851,003.91/1,139,008.18
6. Step 6: Final answer
   x = 938,290.76