Finding the Fourth Proportional to 2,258,086.87, 3,385,323.92 and 1,178,057.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258,086.87 : 3,385,323.92 = 1,178,057.42 : x
2. Step 2: Convert to fraction form
   2,258,086.87/3,385,323.92 = 1,178,057.42/x
3. Step 3: Cross multiply
   2,258,086.87x = 3,385,323.92 × 1,178,057.42
4. Step 4: Simplify right side
   2,258,086.87x = 3,988,105,961,772.97
5. Step 5: Solve for x
   x = 3,988,105,961,772.97/2,258,086.87
6. Step 6: Final answer
   x = 1,766,143.73