Finding the Fourth Proportional to 2,308.91, 3,463.86 and 665.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.91 : 3,463.86 = 665.52 : x
2. Step 2: Convert to fraction form
   2,308.91/3,463.86 = 665.52/x
3. Step 3: Cross multiply
   2,308.91x = 3,463.86 × 665.52
4. Step 4: Simplify right side
   2,308.91x = 2,305,257.61
5. Step 5: Solve for x
   x = 2,305,257.61/2,308.91
6. Step 6: Final answer
   x = 998.42