Finding the Fourth Proportional to 1,674.72, 2,311.20 and 966.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.72 : 2,311.20 = 966.72 : x
2. Step 2: Convert to fraction form
   1,674.72/2,311.20 = 966.72/x
3. Step 3: Cross multiply
   1,674.72x = 2,311.20 × 966.72
4. Step 4: Simplify right side
   1,674.72x = 2,234,283.26
5. Step 5: Solve for x
   x = 2,234,283.26/1,674.72
6. Step 6: Final answer
   x = 1,334.12