Finding the Fourth Proportional to 6,131.52, 9,198.40 and 2,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.52 : 9,198.40 = 2,238.72 : x
2. Step 2: Convert to fraction form
   6,131.52/9,198.40 = 2,238.72/x
3. Step 3: Cross multiply
   6,131.52x = 9,198.40 × 2,238.72
4. Step 4: Simplify right side
   6,131.52x = 20,592,642.05
5. Step 5: Solve for x
   x = 20,592,642.05/6,131.52
6. Step 6: Final answer
   x = 3,358.49