Finding the Fourth Proportional to 2,288.20, 3,151.02 and 2,227.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.20 : 3,151.02 = 2,227.72 : x
2. Step 2: Convert to fraction form
   2,288.20/3,151.02 = 2,227.72/x
3. Step 3: Cross multiply
   2,288.20x = 3,151.02 × 2,227.72
4. Step 4: Simplify right side
   2,288.20x = 7,019,590.27
5. Step 5: Solve for x
   x = 7,019,590.27/2,288.20
6. Step 6: Final answer
   x = 3,067.73