Finding the Fourth Proportional to 4,150.72, 5,728.02 and 2,287.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,150.72 : 5,728.02 = 2,287.72 : x
2. Step 2: Convert to fraction form
   4,150.72/5,728.02 = 2,287.72/x
3. Step 3: Cross multiply
   4,150.72x = 5,728.02 × 2,287.72
4. Step 4: Simplify right side
   4,150.72x = 13,104,105.91
5. Step 5: Solve for x
   x = 13,104,105.91/4,150.72
6. Step 6: Final answer
   x = 3,157.07