Finding the Fourth Proportional to 1,772.32, 2,659.38 and 677.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772.32 : 2,659.38 = 677.38 : x
2. Step 2: Convert to fraction form
   1,772.32/2,659.38 = 677.38/x
3. Step 3: Cross multiply
   1,772.32x = 2,659.38 × 677.38
4. Step 4: Simplify right side
   1,772.32x = 1,801,410.82
5. Step 5: Solve for x
   x = 1,801,410.82/1,772.32
6. Step 6: Final answer
   x = 1,016.41