Finding the Fourth Proportional to 2,787.82, 4,180.82 and 1,143.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,787.82 : 4,180.82 = 1,143.62 : x
2. Step 2: Convert to fraction form
   2,787.82/4,180.82 = 1,143.62/x
3. Step 3: Cross multiply
   2,787.82x = 4,180.82 × 1,143.62
4. Step 4: Simplify right side
   2,787.82x = 4,781,258.42
5. Step 5: Solve for x
   x = 4,781,258.42/2,787.82
6. Step 6: Final answer
   x = 1,715.05