Finding the Fourth Proportional to 3,663.72, 5,494.86 and 995.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.72 : 5,494.86 = 995.28 : x
2. Step 2: Convert to fraction form
   3,663.72/5,494.86 = 995.28/x
3. Step 3: Cross multiply
   3,663.72x = 5,494.86 × 995.28
4. Step 4: Simplify right side
   3,663.72x = 5,468,924.26
5. Step 5: Solve for x
   x = 5,468,924.26/3,663.72
6. Step 6: Final answer
   x = 1,492.72