Finding the Fourth Proportional to 2,308.72, 3,463.27 and 665.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.72 : 3,463.27 = 665.30 : x
2. Step 2: Convert to fraction form
   2,308.72/3,463.27 = 665.30/x
3. Step 3: Cross multiply
   2,308.72x = 3,463.27 × 665.30
4. Step 4: Simplify right side
   2,308.72x = 2,304,113.53
5. Step 5: Solve for x
   x = 2,304,113.53/2,308.72
6. Step 6: Final answer
   x = 998.00