Finding the Fourth Proportional to 2,067.88, 3,101.48 and 681.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.88 : 3,101.48 = 681.24 : x
2. Step 2: Convert to fraction form
   2,067.88/3,101.48 = 681.24/x
3. Step 3: Cross multiply
   2,067.88x = 3,101.48 × 681.24
4. Step 4: Simplify right side
   2,067.88x = 2,112,842.31
5. Step 5: Solve for x
   x = 2,112,842.31/2,067.88
6. Step 6: Final answer
   x = 1,021.74