Finding the Fourth Proportional to 2,228.22, 3,326.28 and 2,151.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.22 : 3,326.28 = 2,151.27 : x
2. Step 2: Convert to fraction form
   2,228.22/3,326.28 = 2,151.27/x
3. Step 3: Cross multiply
   2,228.22x = 3,326.28 × 2,151.27
4. Step 4: Simplify right side
   2,228.22x = 7,155,726.38
5. Step 5: Solve for x
   x = 7,155,726.38/2,228.22
6. Step 6: Final answer
   x = 3,211.41