Finding the Fourth Proportional to 2,238.04, 3,088.20 and 1,243.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.04 : 3,088.20 = 1,243.18 : x
2. Step 2: Convert to fraction form
   2,238.04/3,088.20 = 1,243.18/x
3. Step 3: Cross multiply
   2,238.04x = 3,088.20 × 1,243.18
4. Step 4: Simplify right side
   2,238.04x = 3,839,188.48
5. Step 5: Solve for x
   x = 3,839,188.48/2,238.04
6. Step 6: Final answer
   x = 1,715.42