Finding the Fourth Proportional to 3,822.16, 5,275.92 and 2,560.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,822.16 : 5,275.92 = 2,560.72 : x
2. Step 2: Convert to fraction form
   3,822.16/5,275.92 = 2,560.72/x
3. Step 3: Cross multiply
   3,822.16x = 5,275.92 × 2,560.72
4. Step 4: Simplify right side
   3,822.16x = 13,510,153.86
5. Step 5: Solve for x
   x = 13,510,153.86/3,822.16
6. Step 6: Final answer
   x = 3,534.69