Finding the Fourth Proportional to 1,787.87, 2,466.86 and 1,158.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787.87 : 2,466.86 = 1,158.10 : x
2. Step 2: Convert to fraction form
   1,787.87/2,466.86 = 1,158.10/x
3. Step 3: Cross multiply
   1,787.87x = 2,466.86 × 1,158.10
4. Step 4: Simplify right side
   1,787.87x = 2,856,858.61
5. Step 5: Solve for x
   x = 2,856,858.61/1,787.87
6. Step 6: Final answer
   x = 1,597.91