Finding the Fourth Proportional to 2,076.45, 2,865.48 and 1,144.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.45 : 2,865.48 = 1,144.95 : x
2. Step 2: Convert to fraction form
   2,076.45/2,865.48 = 1,144.95/x
3. Step 3: Cross multiply
   2,076.45x = 2,865.48 × 1,144.95
4. Step 4: Simplify right side
   2,076.45x = 3,280,831.33
5. Step 5: Solve for x
   x = 3,280,831.33/2,076.45
6. Step 6: Final answer
   x = 1,580.02