Finding the Fourth Proportional to 2,076.39, 2,865.42 and 1,144.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.39 : 2,865.42 = 1,144.89 : x
2. Step 2: Convert to fraction form
   2,076.39/2,865.42 = 1,144.89/x
3. Step 3: Cross multiply
   2,076.39x = 2,865.42 × 1,144.89
4. Step 4: Simplify right side
   2,076.39x = 3,280,590.70
5. Step 5: Solve for x
   x = 3,280,590.70/2,076.39
6. Step 6: Final answer
   x = 1,579.95