Finding the Fourth Proportional to 2,066.83, 3,100.44 and 680.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.83 : 3,100.44 = 680.17 : x
2. Step 2: Convert to fraction form
   2,066.83/3,100.44 = 680.17/x
3. Step 3: Cross multiply
   2,066.83x = 3,100.44 × 680.17
4. Step 4: Simplify right side
   2,066.83x = 2,108,826.27
5. Step 5: Solve for x
   x = 2,108,826.27/2,066.83
6. Step 6: Final answer
   x = 1,020.32