Finding the Fourth Proportional to 2,232.72, 3,081.16 and 1,238.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,232.72 : 3,081.16 = 1,238.06 : x
2. Step 2: Convert to fraction form
   2,232.72/3,081.16 = 1,238.06/x
3. Step 3: Cross multiply
   2,232.72x = 3,081.16 × 1,238.06
4. Step 4: Simplify right side
   2,232.72x = 3,814,660.95
5. Step 5: Solve for x
   x = 3,814,660.95/2,232.72
6. Step 6: Final answer
   x = 1,708.53