Finding the Fourth Proportional to 2,718.31, 4,076.61 and 1,158.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,718.31 : 4,076.61 = 1,158.28 : x
2. Step 2: Convert to fraction form
   2,718.31/4,076.61 = 1,158.28/x
3. Step 3: Cross multiply
   2,718.31x = 4,076.61 × 1,158.28
4. Step 4: Simplify right side
   2,718.31x = 4,721,855.83
5. Step 5: Solve for x
   x = 4,721,855.83/2,718.31
6. Step 6: Final answer
   x = 1,737.06