Finding the Fourth Proportional to 2,963.89, 4,087.10 and 2,545.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,963.89 : 4,087.10 = 2,545.63 : x
2. Step 2: Convert to fraction form
   2,963.89/4,087.10 = 2,545.63/x
3. Step 3: Cross multiply
   2,963.89x = 4,087.10 × 2,545.63
4. Step 4: Simplify right side
   2,963.89x = 10,404,240.52
5. Step 5: Solve for x
   x = 10,404,240.52/2,963.89
6. Step 6: Final answer
   x = 3,510.33