Finding the Fourth Proportional to 2,728.72, 4,085.76 and 2,264.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.72 : 4,085.76 = 2,264.92 : x
2. Step 2: Convert to fraction form
   2,728.72/4,085.76 = 2,264.92/x
3. Step 3: Cross multiply
   2,728.72x = 4,085.76 × 2,264.92
4. Step 4: Simplify right side
   2,728.72x = 9,253,919.54
5. Step 5: Solve for x
   x = 9,253,919.54/2,728.72
6. Step 6: Final answer
   x = 3,391.30