Finding the Fourth Proportional to 2,067.66, 3,101.69 and 681.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.66 : 3,101.69 = 681.01 : x
2. Step 2: Convert to fraction form
   2,067.66/3,101.69 = 681.01/x
3. Step 3: Cross multiply
   2,067.66x = 3,101.69 × 681.01
4. Step 4: Simplify right side
   2,067.66x = 2,112,275.86
5. Step 5: Solve for x
   x = 2,112,275.86/2,067.66
6. Step 6: Final answer
   x = 1,021.58