Finding the Fourth Proportional to 2,661.54, 3,965.57 and 2,512.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.54 : 3,965.57 = 2,512.50 : x
2. Step 2: Convert to fraction form
   2,661.54/3,965.57 = 2,512.50/x
3. Step 3: Cross multiply
   2,661.54x = 3,965.57 × 2,512.50
4. Step 4: Simplify right side
   2,661.54x = 9,963,482.06
5. Step 5: Solve for x
   x = 9,963,482.06/2,661.54
6. Step 6: Final answer
   x = 3,743.50