Finding the Fourth Proportional to 2,238.11, 3,088.54 and 1,243.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.11 : 3,088.54 = 1,243.38 : x
2. Step 2: Convert to fraction form
   2,238.11/3,088.54 = 1,243.38/x
3. Step 3: Cross multiply
   2,238.11x = 3,088.54 × 1,243.38
4. Step 4: Simplify right side
   2,238.11x = 3,840,217.69
5. Step 5: Solve for x
   x = 3,840,217.69/2,238.11
6. Step 6: Final answer
   x = 1,715.83