Finding the Fourth Proportional to 2,067.93, 3,101.85 and 680.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.93 : 3,101.85 = 680.70 : x
2. Step 2: Convert to fraction form
   2,067.93/3,101.85 = 680.70/x
3. Step 3: Cross multiply
   2,067.93x = 3,101.85 × 680.70
4. Step 4: Simplify right side
   2,067.93x = 2,111,429.30
5. Step 5: Solve for x
   x = 2,111,429.30/2,067.93
6. Step 6: Final answer
   x = 1,021.04