Finding the Fourth Proportional to 2,238.59, 3,089.23 and 1,243.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.59 : 3,089.23 = 1,243.87 : x
2. Step 2: Convert to fraction form
   2,238.59/3,089.23 = 1,243.87/x
3. Step 3: Cross multiply
   2,238.59x = 3,089.23 × 1,243.87
4. Step 4: Simplify right side
   2,238.59x = 3,842,589.69
5. Step 5: Solve for x
   x = 3,842,589.69/2,238.59
6. Step 6: Final answer
   x = 1,716.52