Finding the Fourth Proportional to 2,978.43, 4,468.08 and 787.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.43 : 4,468.08 = 787.32 : x
2. Step 2: Convert to fraction form
   2,978.43/4,468.08 = 787.32/x
3. Step 3: Cross multiply
   2,978.43x = 4,468.08 × 787.32
4. Step 4: Simplify right side
   2,978.43x = 3,517,808.75
5. Step 5: Solve for x
   x = 3,517,808.75/2,978.43
6. Step 6: Final answer
   x = 1,181.09