Finding the Fourth Proportional to 2,064.55, 3,096.86 and 677.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.55 : 3,096.86 = 677.88 : x
2. Step 2: Convert to fraction form
   2,064.55/3,096.86 = 677.88/x
3. Step 3: Cross multiply
   2,064.55x = 3,096.86 × 677.88
4. Step 4: Simplify right side
   2,064.55x = 2,099,299.46
5. Step 5: Solve for x
   x = 2,099,299.46/2,064.55
6. Step 6: Final answer
   x = 1,016.83