Finding the Fourth Proportional to 2,076.25, 2,865.27 and 1,144.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.25 : 2,865.27 = 1,144.75 : x
2. Step 2: Convert to fraction form
   2,076.25/2,865.27 = 1,144.75/x
3. Step 3: Cross multiply
   2,076.25x = 2,865.27 × 1,144.75
4. Step 4: Simplify right side
   2,076.25x = 3,280,017.83
5. Step 5: Solve for x
   x = 3,280,017.83/2,076.25
6. Step 6: Final answer
   x = 1,579.78