Finding the Fourth Proportional to 1,966.43, 2,949.72 and 667.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,966.43 : 2,949.72 = 667.73 : x
2. Step 2: Convert to fraction form
   1,966.43/2,949.72 = 667.73/x
3. Step 3: Cross multiply
   1,966.43x = 2,949.72 × 667.73
4. Step 4: Simplify right side
   1,966.43x = 1,969,623.91
5. Step 5: Solve for x
   x = 1,969,623.91/1,966.43
6. Step 6: Final answer
   x = 1,001.62