Finding the Fourth Proportional to 2,067.94, 3,102.10 and 680.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.94 : 3,102.10 = 680.71 : x
2. Step 2: Convert to fraction form
   2,067.94/3,102.10 = 680.71/x
3. Step 3: Cross multiply
   2,067.94x = 3,102.10 × 680.71
4. Step 4: Simplify right side
   2,067.94x = 2,111,614.98
5. Step 5: Solve for x
   x = 2,111,614.98/2,067.94
6. Step 6: Final answer
   x = 1,021.12