Finding the Fourth Proportional to 2,665,391.07, 3,998,083.47 and 868,271.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,391.07 : 3,998,083.47 = 868,271.61 : x
2. Step 2: Convert to fraction form
   2,665,391.07/3,998,083.47 = 868,271.61/x
3. Step 3: Cross multiply
   2,665,391.07x = 3,998,083.47 × 868,271.61
4. Step 4: Simplify right side
   2,665,391.07x = 3,471,422,371,411.29
5. Step 5: Solve for x
   x = 3,471,422,371,411.29/2,665,391.07
6. Step 6: Final answer
   x = 1,302,406.39