Finding the Fourth Proportional to 2,238.48, 3,089.30 and 1,243.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.48 : 3,089.30 = 1,243.94 : x
2. Step 2: Convert to fraction form
   2,238.48/3,089.30 = 1,243.94/x
3. Step 3: Cross multiply
   2,238.48x = 3,089.30 × 1,243.94
4. Step 4: Simplify right side
   2,238.48x = 3,842,882.18
5. Step 5: Solve for x
   x = 3,842,882.18/2,238.48
6. Step 6: Final answer
   x = 1,716.74