Finding the Fourth Proportional to 1,647.43, 2,472.05 and 673.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.43 : 2,472.05 = 673.47 : x
2. Step 2: Convert to fraction form
   1,647.43/2,472.05 = 673.47/x
3. Step 3: Cross multiply
   1,647.43x = 2,472.05 × 673.47
4. Step 4: Simplify right side
   1,647.43x = 1,664,853.20
5. Step 5: Solve for x
   x = 1,664,853.20/1,647.43
6. Step 6: Final answer
   x = 1,010.58