Finding the Fourth Proportional to 2,108.38, 3,162.60 and 952.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.38 : 3,162.60 = 952.78 : x
2. Step 2: Convert to fraction form
   2,108.38/3,162.60 = 952.78/x
3. Step 3: Cross multiply
   2,108.38x = 3,162.60 × 952.78
4. Step 4: Simplify right side
   2,108.38x = 3,013,241.45
5. Step 5: Solve for x
   x = 3,013,241.45/2,108.38
6. Step 6: Final answer
   x = 1,429.18