Finding the Fourth Proportional to 2,066.85, 3,100.53 and 679.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.85 : 3,100.53 = 679.83 : x
2. Step 2: Convert to fraction form
   2,066.85/3,100.53 = 679.83/x
3. Step 3: Cross multiply
   2,066.85x = 3,100.53 × 679.83
4. Step 4: Simplify right side
   2,066.85x = 2,107,833.31
5. Step 5: Solve for x
   x = 2,107,833.31/2,066.85
6. Step 6: Final answer
   x = 1,019.83