Finding the Fourth Proportional to 2,238.89, 3,089.69 and 1,244.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.89 : 3,089.69 = 1,244.28 : x
2. Step 2: Convert to fraction form
   2,238.89/3,089.69 = 1,244.28/x
3. Step 3: Cross multiply
   2,238.89x = 3,089.69 × 1,244.28
4. Step 4: Simplify right side
   2,238.89x = 3,844,439.47
5. Step 5: Solve for x
   x = 3,844,439.47/2,238.89
6. Step 6: Final answer
   x = 1,717.12