Finding the Fourth Proportional to 2,619,985.50, 3,929,978.25 and 726,726.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619,985.50 : 3,929,978.25 = 726,726.94 : x
2. Step 2: Convert to fraction form
   2,619,985.50/3,929,978.25 = 726,726.94/x
3. Step 3: Cross multiply
   2,619,985.50x = 3,929,978.25 × 726,726.94
4. Step 4: Simplify right side
   2,619,985.50x = 2,856,021,058,064.11
5. Step 5: Solve for x
   x = 2,856,021,058,064.11/2,619,985.50
6. Step 6: Final answer
   x = 1,090,090.41