Finding the Fourth Proportional to 2,017.71, 3,025.96 and 718.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.71 : 3,025.96 = 718.88 : x
2. Step 2: Convert to fraction form
   2,017.71/3,025.96 = 718.88/x
3. Step 3: Cross multiply
   2,017.71x = 3,025.96 × 718.88
4. Step 4: Simplify right side
   2,017.71x = 2,175,285.20
5. Step 5: Solve for x
   x = 2,175,285.20/2,017.71
6. Step 6: Final answer
   x = 1,078.10