Finding the Fourth Proportional to 2,067.76, 3,101.82 and 681.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.76 : 3,101.82 = 681.04 : x
2. Step 2: Convert to fraction form
   2,067.76/3,101.82 = 681.04/x
3. Step 3: Cross multiply
   2,067.76x = 3,101.82 × 681.04
4. Step 4: Simplify right side
   2,067.76x = 2,112,463.49
5. Step 5: Solve for x
   x = 2,112,463.49/2,067.76
6. Step 6: Final answer
   x = 1,021.62