Finding the Fourth Proportional to 2,076.38, 2,865.45 and 1,144.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.38 : 2,865.45 = 1,144.88 : x
2. Step 2: Convert to fraction form
   2,076.38/2,865.45 = 1,144.88/x
3. Step 3: Cross multiply
   2,076.38x = 2,865.45 × 1,144.88
4. Step 4: Simplify right side
   2,076.38x = 3,280,596.40
5. Step 5: Solve for x
   x = 3,280,596.40/2,076.38
6. Step 6: Final answer
   x = 1,579.96