Finding the Fourth Proportional to 2,238.64, 3,088.83 and 1,243.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.64 : 3,088.83 = 1,243.86 : x
2. Step 2: Convert to fraction form
   2,238.64/3,088.83 = 1,243.86/x
3. Step 3: Cross multiply
   2,238.64x = 3,088.83 × 1,243.86
4. Step 4: Simplify right side
   2,238.64x = 3,842,065.17
5. Step 5: Solve for x
   x = 3,842,065.17/2,238.64
6. Step 6: Final answer
   x = 1,716.25