Finding the Fourth Proportional to 2,730.64, 3,761.72 and 2,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.64 : 3,761.72 = 2,256.56 : x
2. Step 2: Convert to fraction form
   2,730.64/3,761.72 = 2,256.56/x
3. Step 3: Cross multiply
   2,730.64x = 3,761.72 × 2,256.56
4. Step 4: Simplify right side
   2,730.64x = 8,488,546.88
5. Step 5: Solve for x
   x = 8,488,546.88/2,730.64
6. Step 6: Final answer
   x = 3,108.63