Finding the Fourth Proportional to 2,074.23, 2,862.43 and 1,142.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.23 : 2,862.43 = 1,142.73 : x
2. Step 2: Convert to fraction form
   2,074.23/2,862.43 = 1,142.73/x
3. Step 3: Cross multiply
   2,074.23x = 2,862.43 × 1,142.73
4. Step 4: Simplify right side
   2,074.23x = 3,270,981.78
5. Step 5: Solve for x
   x = 3,270,981.78/2,074.23
6. Step 6: Final answer
   x = 1,576.96