Finding the Fourth Proportional to 2,052.50, 3,078.72 and 956.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.50 : 3,078.72 = 956.25 : x
2. Step 2: Convert to fraction form
   2,052.50/3,078.72 = 956.25/x
3. Step 3: Cross multiply
   2,052.50x = 3,078.72 × 956.25
4. Step 4: Simplify right side
   2,052.50x = 2,944,026
5. Step 5: Solve for x
   x = 2,944,026/2,052.50
6. Step 6: Final answer
   x = 1,434.36