Finding the Fourth Proportional to 1,773.78, 2,660.22 and 677.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.78 : 2,660.22 = 677.82 : x
2. Step 2: Convert to fraction form
   1,773.78/2,660.22 = 677.82/x
3. Step 3: Cross multiply
   1,773.78x = 2,660.22 × 677.82
4. Step 4: Simplify right side
   1,773.78x = 1,803,150.32
5. Step 5: Solve for x
   x = 1,803,150.32/1,773.78
6. Step 6: Final answer
   x = 1,016.56