Finding the Fourth Proportional to 2,363.30, 3,545.15 and 719.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.30 : 3,545.15 = 719.86 : x
2. Step 2: Convert to fraction form
   2,363.30/3,545.15 = 719.86/x
3. Step 3: Cross multiply
   2,363.30x = 3,545.15 × 719.86
4. Step 4: Simplify right side
   2,363.30x = 2,552,020.54
5. Step 5: Solve for x
   x = 2,552,020.54/2,363.30
6. Step 6: Final answer
   x = 1,079.85