Finding the Fourth Proportional to 2,486,528.18, 3,729,792.42 and 689,411.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,486,528.18 : 3,729,792.42 = 689,411.69 : x
2. Step 2: Convert to fraction form
   2,486,528.18/3,729,792.42 = 689,411.69/x
3. Step 3: Cross multiply
   2,486,528.18x = 3,729,792.42 × 689,411.69
4. Step 4: Simplify right side
   2,486,528.18x = 2,571,362,490,959.15
5. Step 5: Solve for x
   x = 2,571,362,490,959.15/2,486,528.18
6. Step 6: Final answer
   x = 1,034,117.58