Finding the Fourth Proportional to 2,238.47, 3,089.10 and 1,243.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.47 : 3,089.10 = 1,243.86 : x
2. Step 2: Convert to fraction form
   2,238.47/3,089.10 = 1,243.86/x
3. Step 3: Cross multiply
   2,238.47x = 3,089.10 × 1,243.86
4. Step 4: Simplify right side
   2,238.47x = 3,842,407.93
5. Step 5: Solve for x
   x = 3,842,407.93/2,238.47
6. Step 6: Final answer
   x = 1,716.53