Finding the Fourth Proportional to 2,087.73, 2,881.15 and 1,143.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.73 : 2,881.15 = 1,143.47 : x
2. Step 2: Convert to fraction form
   2,087.73/2,881.15 = 1,143.47/x
3. Step 3: Cross multiply
   2,087.73x = 2,881.15 × 1,143.47
4. Step 4: Simplify right side
   2,087.73x = 3,294,512.93
5. Step 5: Solve for x
   x = 3,294,512.93/2,087.73
6. Step 6: Final answer
   x = 1,578.04