Finding the Fourth Proportional to 2,308.10, 3,462.15 and 664.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.10 : 3,462.15 = 664.65 : x
2. Step 2: Convert to fraction form
   2,308.10/3,462.15 = 664.65/x
3. Step 3: Cross multiply
   2,308.10x = 3,462.15 × 664.65
4. Step 4: Simplify right side
   2,308.10x = 2,301,118.00
5. Step 5: Solve for x
   x = 2,301,118.00/2,308.10
6. Step 6: Final answer
   x = 996.98