Finding the Fourth Proportional to 2,308.05, 3,461.27 and 664.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.05 : 3,461.27 = 664.15 : x
2. Step 2: Convert to fraction form
   2,308.05/3,461.27 = 664.15/x
3. Step 3: Cross multiply
   2,308.05x = 3,461.27 × 664.15
4. Step 4: Simplify right side
   2,308.05x = 2,298,802.47
5. Step 5: Solve for x
   x = 2,298,802.47/2,308.05
6. Step 6: Final answer
   x = 995.99