Finding the Fourth Proportional to 2,087.98, 2,881.37 and 1,143.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.98 : 2,881.37 = 1,143.79 : x
2. Step 2: Convert to fraction form
   2,087.98/2,881.37 = 1,143.79/x
3. Step 3: Cross multiply
   2,087.98x = 2,881.37 × 1,143.79
4. Step 4: Simplify right side
   2,087.98x = 3,295,677.85
5. Step 5: Solve for x
   x = 3,295,677.85/2,087.98
6. Step 6: Final answer
   x = 1,578.41