Finding the Fourth Proportional to 2,621.27, 3,932.13 and 673.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.27 : 3,932.13 = 673.47 : x
2. Step 2: Convert to fraction form
   2,621.27/3,932.13 = 673.47/x
3. Step 3: Cross multiply
   2,621.27x = 3,932.13 × 673.47
4. Step 4: Simplify right side
   2,621.27x = 2,648,171.59
5. Step 5: Solve for x
   x = 2,648,171.59/2,621.27
6. Step 6: Final answer
   x = 1,010.26