Finding the Fourth Proportional to 2,052.54, 3,078.86 and 957.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.54 : 3,078.86 = 957.69 : x
2. Step 2: Convert to fraction form
   2,052.54/3,078.86 = 957.69/x
3. Step 3: Cross multiply
   2,052.54x = 3,078.86 × 957.69
4. Step 4: Simplify right side
   2,052.54x = 2,948,588.64
5. Step 5: Solve for x
   x = 2,948,588.64/2,052.54
6. Step 6: Final answer
   x = 1,436.56