Finding the Fourth Proportional to 2,027.50, 2,798.10 and 1,143.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,027.50 : 2,798.10 = 1,143.31 : x
2. Step 2: Convert to fraction form
   2,027.50/2,798.10 = 1,143.31/x
3. Step 3: Cross multiply
   2,027.50x = 2,798.10 × 1,143.31
4. Step 4: Simplify right side
   2,027.50x = 3,199,095.71
5. Step 5: Solve for x
   x = 3,199,095.71/2,027.50
6. Step 6: Final answer
   x = 1,577.85