Finding the Fourth Proportional to 1,761.72, 2,640.42 and 1,545.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.72 : 2,640.42 = 1,545.72 : x
2. Step 2: Convert to fraction form
   1,761.72/2,640.42 = 1,545.72/x
3. Step 3: Cross multiply
   1,761.72x = 2,640.42 × 1,545.72
4. Step 4: Simplify right side
   1,761.72x = 4,081,350.00
5. Step 5: Solve for x
   x = 4,081,350.00/1,761.72
6. Step 6: Final answer
   x = 2,316.68