Finding the Fourth Proportional to 2,308.42, 3,462.15 and 664.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.42 : 3,462.15 = 664.60 : x
2. Step 2: Convert to fraction form
   2,308.42/3,462.15 = 664.60/x
3. Step 3: Cross multiply
   2,308.42x = 3,462.15 × 664.60
4. Step 4: Simplify right side
   2,308.42x = 2,300,944.89
5. Step 5: Solve for x
   x = 2,300,944.89/2,308.42
6. Step 6: Final answer
   x = 996.76