Finding the Fourth Proportional to 2,764.42, 4,154.82 and 2,560.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.42 : 4,154.82 = 2,560.72 : x
2. Step 2: Convert to fraction form
   2,764.42/4,154.82 = 2,560.72/x
3. Step 3: Cross multiply
   2,764.42x = 4,154.82 × 2,560.72
4. Step 4: Simplify right side
   2,764.42x = 10,639,330.67
5. Step 5: Solve for x
   x = 10,639,330.67/2,764.42
6. Step 6: Final answer
   x = 3,848.67