Finding the Fourth Proportional to 1,456.78, 2,185.80 and 995.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.78 : 2,185.80 = 995.08 : x
2. Step 2: Convert to fraction form
   1,456.78/2,185.80 = 995.08/x
3. Step 3: Cross multiply
   1,456.78x = 2,185.80 × 995.08
4. Step 4: Simplify right side
   1,456.78x = 2,175,045.86
5. Step 5: Solve for x
   x = 2,175,045.86/1,456.78
6. Step 6: Final answer
   x = 1,493.05