Finding the Fourth Proportional to 3,085,781.88, 4,629,411.81 and 1,287,665.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085,781.88 : 4,629,411.81 = 1,287,665.10 : x
2. Step 2: Convert to fraction form
   3,085,781.88/4,629,411.81 = 1,287,665.10/x
3. Step 3: Cross multiply
   3,085,781.88x = 4,629,411.81 × 1,287,665.10
4. Step 4: Simplify right side
   3,085,781.88x = 5,961,132,021,264.83
5. Step 5: Solve for x
   x = 5,961,132,021,264.83/3,085,781.88
6. Step 6: Final answer
   x = 1,931,806.02