Finding the Fourth Proportional to 2,076.15, 2,864.84 and 1,144.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.15 : 2,864.84 = 1,144.59 : x
2. Step 2: Convert to fraction form
   2,076.15/2,864.84 = 1,144.59/x
3. Step 3: Cross multiply
   2,076.15x = 2,864.84 × 1,144.59
4. Step 4: Simplify right side
   2,076.15x = 3,279,061.49
5. Step 5: Solve for x
   x = 3,279,061.49/2,076.15
6. Step 6: Final answer
   x = 1,579.40