Finding the Fourth Proportional to 2,641.71, 3,963.67 and 1,160.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.71 : 3,963.67 = 1,160.17 : x
2. Step 2: Convert to fraction form
   2,641.71/3,963.67 = 1,160.17/x
3. Step 3: Cross multiply
   2,641.71x = 3,963.67 × 1,160.17
4. Step 4: Simplify right side
   2,641.71x = 4,598,545.40
5. Step 5: Solve for x
   x = 4,598,545.40/2,641.71
6. Step 6: Final answer
   x = 1,740.74