Finding the Fourth Proportional to 2,179.57, 3,269.76 and 718.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.57 : 3,269.76 = 718.83 : x
2. Step 2: Convert to fraction form
   2,179.57/3,269.76 = 718.83/x
3. Step 3: Cross multiply
   2,179.57x = 3,269.76 × 718.83
4. Step 4: Simplify right side
   2,179.57x = 2,350,385.23
5. Step 5: Solve for x
   x = 2,350,385.23/2,179.57
6. Step 6: Final answer
   x = 1,078.37