Finding the Fourth Proportional to 2,718.56, 4,076.98 and 1,158.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,718.56 : 4,076.98 = 1,158.55 : x
2. Step 2: Convert to fraction form
   2,718.56/4,076.98 = 1,158.55/x
3. Step 3: Cross multiply
   2,718.56x = 4,076.98 × 1,158.55
4. Step 4: Simplify right side
   2,718.56x = 4,723,385.18
5. Step 5: Solve for x
   x = 4,723,385.18/2,718.56
6. Step 6: Final answer
   x = 1,737.46