Finding the Fourth Proportional to 2,238.52, 3,088.98 and 1,243.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.52 : 3,088.98 = 1,243.72 : x
2. Step 2: Convert to fraction form
   2,238.52/3,088.98 = 1,243.72/x
3. Step 3: Cross multiply
   2,238.52x = 3,088.98 × 1,243.72
4. Step 4: Simplify right side
   2,238.52x = 3,841,826.21
5. Step 5: Solve for x
   x = 3,841,826.21/2,238.52
6. Step 6: Final answer
   x = 1,716.23