Finding the Fourth Proportional to 2,238.66, 3,089.16 and 1,243.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.66 : 3,089.16 = 1,243.62 : x
2. Step 2: Convert to fraction form
   2,238.66/3,089.16 = 1,243.62/x
3. Step 3: Cross multiply
   2,238.66x = 3,089.16 × 1,243.62
4. Step 4: Simplify right side
   2,238.66x = 3,841,741.16
5. Step 5: Solve for x
   x = 3,841,741.16/2,238.66
6. Step 6: Final answer
   x = 1,716.09