Finding the Fourth Proportional to 2,056.06, 3,085.71 and 959.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.06 : 3,085.71 = 959.86 : x
2. Step 2: Convert to fraction form
   2,056.06/3,085.71 = 959.86/x
3. Step 3: Cross multiply
   2,056.06x = 3,085.71 × 959.86
4. Step 4: Simplify right side
   2,056.06x = 2,961,849.60
5. Step 5: Solve for x
   x = 2,961,849.60/2,056.06
6. Step 6: Final answer
   x = 1,440.55