Finding the Fourth Proportional to 1,781.40, 2,458.32 and 995.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,781.40 : 2,458.32 = 995.42 : x
2. Step 2: Convert to fraction form
   1,781.40/2,458.32 = 995.42/x
3. Step 3: Cross multiply
   1,781.40x = 2,458.32 × 995.42
4. Step 4: Simplify right side
   1,781.40x = 2,447,060.89
5. Step 5: Solve for x
   x = 2,447,060.89/1,781.40
6. Step 6: Final answer
   x = 1,373.67