Finding the Fourth Proportional to 2,016.88, 3,027.12 and 1,689.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.88 : 3,027.12 = 1,689.82 : x
2. Step 2: Convert to fraction form
   2,016.88/3,027.12 = 1,689.82/x
3. Step 3: Cross multiply
   2,016.88x = 3,027.12 × 1,689.82
4. Step 4: Simplify right side
   2,016.88x = 5,115,287.92
5. Step 5: Solve for x
   x = 5,115,287.92/2,016.88
6. Step 6: Final answer
   x = 2,536.24