Finding the Fourth Proportional to 2,238.09, 3,088.76 and 1,243.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.09 : 3,088.76 = 1,243.53 : x
2. Step 2: Convert to fraction form
   2,238.09/3,088.76 = 1,243.53/x
3. Step 3: Cross multiply
   2,238.09x = 3,088.76 × 1,243.53
4. Step 4: Simplify right side
   2,238.09x = 3,840,959.51
5. Step 5: Solve for x
   x = 3,840,959.51/2,238.09
6. Step 6: Final answer
   x = 1,716.18