Finding the Fourth Proportional to 2,056.52, 3,085.79 and 960.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.52 : 3,085.79 = 960.72 : x
2. Step 2: Convert to fraction form
   2,056.52/3,085.79 = 960.72/x
3. Step 3: Cross multiply
   2,056.52x = 3,085.79 × 960.72
4. Step 4: Simplify right side
   2,056.52x = 2,964,575.37
5. Step 5: Solve for x
   x = 2,964,575.37/2,056.52
6. Step 6: Final answer
   x = 1,441.55