Finding the Fourth Proportional to 2,456.60, 3,684.54 and 995.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.60 : 3,684.54 = 995.40 : x
2. Step 2: Convert to fraction form
   2,456.60/3,684.54 = 995.40/x
3. Step 3: Cross multiply
   2,456.60x = 3,684.54 × 995.40
4. Step 4: Simplify right side
   2,456.60x = 3,667,591.12
5. Step 5: Solve for x
   x = 3,667,591.12/2,456.60
6. Step 6: Final answer
   x = 1,492.96