Finding the Fourth Proportional to 2,064.24, 3,096.90 and 677.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.24 : 3,096.90 = 677.79 : x
2. Step 2: Convert to fraction form
   2,064.24/3,096.90 = 677.79/x
3. Step 3: Cross multiply
   2,064.24x = 3,096.90 × 677.79
4. Step 4: Simplify right side
   2,064.24x = 2,099,047.85
5. Step 5: Solve for x
   x = 2,099,047.85/2,064.24
6. Step 6: Final answer
   x = 1,016.86