Finding the Fourth Proportional to 2,363.80, 3,545.88 and 1,131.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.80 : 3,545.88 = 1,131.76 : x
2. Step 2: Convert to fraction form
   2,363.80/3,545.88 = 1,131.76/x
3. Step 3: Cross multiply
   2,363.80x = 3,545.88 × 1,131.76
4. Step 4: Simplify right side
   2,363.80x = 4,013,085.15
5. Step 5: Solve for x
   x = 4,013,085.15/2,363.80
6. Step 6: Final answer
   x = 1,697.73