Finding the Fourth Proportional to 2,064.18, 3,096.12 and 677.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.18 : 3,096.12 = 677.50 : x
2. Step 2: Convert to fraction form
   2,064.18/3,096.12 = 677.50/x
3. Step 3: Cross multiply
   2,064.18x = 3,096.12 × 677.50
4. Step 4: Simplify right side
   2,064.18x = 2,097,616.10
5. Step 5: Solve for x
   x = 2,097,616.10/2,064.18
6. Step 6: Final answer
   x = 1,016.20