Finding the Fourth Proportional to 3,835,128.78, 5,755,259.25 and 1,591,266.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,835,128.78 : 5,755,259.25 = 1,591,266.78 : x
2. Step 2: Convert to fraction form
   3,835,128.78/5,755,259.25 = 1,591,266.78/x
3. Step 3: Cross multiply
   3,835,128.78x = 5,755,259.25 × 1,591,266.78
4. Step 4: Simplify right side
   3,835,128.78x = 9,158,152,854,812.72
5. Step 5: Solve for x
   x = 9,158,152,854,812.72/3,835,128.78
6. Step 6: Final answer
   x = 2,387,964.88