Finding the Fourth Proportional to 2,621.34, 3,932.16 and 673.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.34 : 3,932.16 = 673.56 : x
2. Step 2: Convert to fraction form
   2,621.34/3,932.16 = 673.56/x
3. Step 3: Cross multiply
   2,621.34x = 3,932.16 × 673.56
4. Step 4: Simplify right side
   2,621.34x = 2,648,545.69
5. Step 5: Solve for x
   x = 2,648,545.69/2,621.34
6. Step 6: Final answer
   x = 1,010.38