Finding the Fourth Proportional to 1,272,119.61, 1,755,539.82 and 699,160.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,119.61 : 1,755,539.82 = 699,160.71 : x
2. Step 2: Convert to fraction form
   1,272,119.61/1,755,539.82 = 699,160.71/x
3. Step 3: Cross multiply
   1,272,119.61x = 1,755,539.82 × 699,160.71
4. Step 4: Simplify right side
   1,272,119.61x = 1,227,404,466,984.47
5. Step 5: Solve for x
   x = 1,227,404,466,984.47/1,272,119.61
6. Step 6: Final answer
   x = 964,849.89