Finding the Fourth Proportional to 2,087.99, 2,881.50 and 1,143.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.99 : 2,881.50 = 1,143.84 : x
2. Step 2: Convert to fraction form
   2,087.99/2,881.50 = 1,143.84/x
3. Step 3: Cross multiply
   2,087.99x = 2,881.50 × 1,143.84
4. Step 4: Simplify right side
   2,087.99x = 3,295,974.96
5. Step 5: Solve for x
   x = 3,295,974.96/2,087.99
6. Step 6: Final answer
   x = 1,578.54