Finding the Fourth Proportional to 2,363.31, 3,545.48 and 719.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.31 : 3,545.48 = 719.81 : x
2. Step 2: Convert to fraction form
   2,363.31/3,545.48 = 719.81/x
3. Step 3: Cross multiply
   2,363.31x = 3,545.48 × 719.81
4. Step 4: Simplify right side
   2,363.31x = 2,552,087.25
5. Step 5: Solve for x
   x = 2,552,087.25/2,363.31
6. Step 6: Final answer
   x = 1,079.88