Finding the Fourth Proportional to 2,087.03, 2,879.98 and 1,142.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.03 : 2,879.98 = 1,142.77 : x
2. Step 2: Convert to fraction form
   2,087.03/2,879.98 = 1,142.77/x
3. Step 3: Cross multiply
   2,087.03x = 2,879.98 × 1,142.77
4. Step 4: Simplify right side
   2,087.03x = 3,291,148.97
5. Step 5: Solve for x
   x = 3,291,148.97/2,087.03
6. Step 6: Final answer
   x = 1,576.96