Finding the Fourth Proportional to 2,067.98, 3,102.17 and 681.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.98 : 3,102.17 = 681.32 : x
2. Step 2: Convert to fraction form
   2,067.98/3,102.17 = 681.32/x
3. Step 3: Cross multiply
   2,067.98x = 3,102.17 × 681.32
4. Step 4: Simplify right side
   2,067.98x = 2,113,570.46
5. Step 5: Solve for x
   x = 2,113,570.46/2,067.98
6. Step 6: Final answer
   x = 1,022.05