Finding the Fourth Proportional to 4,151.25, 5,728.73 and 2,288.25

Step by Step Solution

1. Step 1: Write the proportion equation
   4,151.25 : 5,728.73 = 2,288.25 : x
2. Step 2: Convert to fraction form
   4,151.25/5,728.73 = 2,288.25/x
3. Step 3: Cross multiply
   4,151.25x = 5,728.73 × 2,288.25
4. Step 4: Simplify right side
   4,151.25x = 13,108,754.98
5. Step 5: Solve for x
   x = 13,108,754.98/4,151.25
6. Step 6: Final answer
   x = 3,157.79