Finding the Fourth Proportional to 2,363.21, 3,545.33 and 719.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.21 : 3,545.33 = 719.89 : x
2. Step 2: Convert to fraction form
   2,363.21/3,545.33 = 719.89/x
3. Step 3: Cross multiply
   2,363.21x = 3,545.33 × 719.89
4. Step 4: Simplify right side
   2,363.21x = 2,552,247.61
5. Step 5: Solve for x
   x = 2,552,247.61/2,363.21
6. Step 6: Final answer
   x = 1,079.99