Finding the Fourth Proportional to 2,238.76, 3,089.48 and 1,244.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.76 : 3,089.48 = 1,244.20 : x
2. Step 2: Convert to fraction form
   2,238.76/3,089.48 = 1,244.20/x
3. Step 3: Cross multiply
   2,238.76x = 3,089.48 × 1,244.20
4. Step 4: Simplify right side
   2,238.76x = 3,843,931.02
5. Step 5: Solve for x
   x = 3,843,931.02/2,238.76
6. Step 6: Final answer
   x = 1,716.99