Finding the Fourth Proportional to 2,066.93, 3,100.60 and 679.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.93 : 3,100.60 = 679.71 : x
2. Step 2: Convert to fraction form
   2,066.93/3,100.60 = 679.71/x
3. Step 3: Cross multiply
   2,066.93x = 3,100.60 × 679.71
4. Step 4: Simplify right side
   2,066.93x = 2,107,493.32
5. Step 5: Solve for x
   x = 2,107,493.32/2,066.93
6. Step 6: Final answer
   x = 1,019.62