Finding the Fourth Proportional to 1,766.32, 2,649.52 and 671.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.32 : 2,649.52 = 671.20 : x
2. Step 2: Convert to fraction form
   1,766.32/2,649.52 = 671.20/x
3. Step 3: Cross multiply
   1,766.32x = 2,649.52 × 671.20
4. Step 4: Simplify right side
   1,766.32x = 1,778,357.82
5. Step 5: Solve for x
   x = 1,778,357.82/1,766.32
6. Step 6: Final answer
   x = 1,006.82