Finding the Fourth Proportional to 2,066.94, 3,100.86 and 680.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.94 : 3,100.86 = 680.58 : x
2. Step 2: Convert to fraction form
   2,066.94/3,100.86 = 680.58/x
3. Step 3: Cross multiply
   2,066.94x = 3,100.86 × 680.58
4. Step 4: Simplify right side
   2,066.94x = 2,110,383.30
5. Step 5: Solve for x
   x = 2,110,383.30/2,066.94
6. Step 6: Final answer
   x = 1,021.02