Finding the Fourth Proportional to 2,512.78, 3,769.71 and 952.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,512.78 : 3,769.71 = 952.81 : x
2. Step 2: Convert to fraction form
   2,512.78/3,769.71 = 952.81/x
3. Step 3: Cross multiply
   2,512.78x = 3,769.71 × 952.81
4. Step 4: Simplify right side
   2,512.78x = 3,591,817.39
5. Step 5: Solve for x
   x = 3,591,817.39/2,512.78
6. Step 6: Final answer
   x = 1,429.42