Finding the Fourth Proportional to 2,238, 3,088.47 and 1,243.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238 : 3,088.47 = 1,243.32 : x
2. Step 2: Convert to fraction form
   2,238/3,088.47 = 1,243.32/x
3. Step 3: Cross multiply
   2,238x = 3,088.47 × 1,243.32
4. Step 4: Simplify right side
   2,238x = 3,839,956.52
5. Step 5: Solve for x
   x = 3,839,956.52/2,238
6. Step 6: Final answer
   x = 1,715.80