Finding the Fourth Proportional to 3,664.22, 5,495.61 and 995.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664.22 : 5,495.61 = 995.78 : x
2. Step 2: Convert to fraction form
   3,664.22/5,495.61 = 995.78/x
3. Step 3: Cross multiply
   3,664.22x = 5,495.61 × 995.78
4. Step 4: Simplify right side
   3,664.22x = 5,472,418.53
5. Step 5: Solve for x
   x = 5,472,418.53/3,664.22
6. Step 6: Final answer
   x = 1,493.47