Finding the Fourth Proportional to 2,879.76, 3,963.72 and 2,549.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,879.76 : 3,963.72 = 2,549.52 : x
2. Step 2: Convert to fraction form
   2,879.76/3,963.72 = 2,549.52/x
3. Step 3: Cross multiply
   2,879.76x = 3,963.72 × 2,549.52
4. Step 4: Simplify right side
   2,879.76x = 10,105,583.41
5. Step 5: Solve for x
   x = 10,105,583.41/2,879.76
6. Step 6: Final answer
   x = 3,509.18