Finding the Fourth Proportional to 2,621.33, 3,932.03 and 673.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.33 : 3,932.03 = 673.55 : x
2. Step 2: Convert to fraction form
   2,621.33/3,932.03 = 673.55/x
3. Step 3: Cross multiply
   2,621.33x = 3,932.03 × 673.55
4. Step 4: Simplify right side
   2,621.33x = 2,648,400.83
5. Step 5: Solve for x
   x = 2,648,400.83/2,621.33
6. Step 6: Final answer
   x = 1,010.33