Finding the Fourth Proportional to 2,307.98, 3,462.57 and 664.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.98 : 3,462.57 = 664.49 : x
2. Step 2: Convert to fraction form
   2,307.98/3,462.57 = 664.49/x
3. Step 3: Cross multiply
   2,307.98x = 3,462.57 × 664.49
4. Step 4: Simplify right side
   2,307.98x = 2,300,825.83
5. Step 5: Solve for x
   x = 2,300,825.83/2,307.98
6. Step 6: Final answer
   x = 996.90