Finding the Fourth Proportional to 2,238.28, 3,088.81 and 1,243.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.28 : 3,088.81 = 1,243.54 : x
2. Step 2: Convert to fraction form
   2,238.28/3,088.81 = 1,243.54/x
3. Step 3: Cross multiply
   2,238.28x = 3,088.81 × 1,243.54
4. Step 4: Simplify right side
   2,238.28x = 3,841,056.36
5. Step 5: Solve for x
   x = 3,841,056.36/2,238.28
6. Step 6: Final answer
   x = 1,716.07