Finding the Fourth Proportional to 2,066.10, 3,099.41 and 679.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.10 : 3,099.41 = 679.59 : x
2. Step 2: Convert to fraction form
   2,066.10/3,099.41 = 679.59/x
3. Step 3: Cross multiply
   2,066.10x = 3,099.41 × 679.59
4. Step 4: Simplify right side
   2,066.10x = 2,106,324.64
5. Step 5: Solve for x
   x = 2,106,324.64/2,066.10
6. Step 6: Final answer
   x = 1,019.47