Finding the Fourth Proportional to 2,074.56, 2,862.90 and 1,143.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.56 : 2,862.90 = 1,143.06 : x
2. Step 2: Convert to fraction form
   2,074.56/2,862.90 = 1,143.06/x
3. Step 3: Cross multiply
   2,074.56x = 2,862.90 × 1,143.06
4. Step 4: Simplify right side
   2,074.56x = 3,272,466.47
5. Step 5: Solve for x
   x = 3,272,466.47/2,074.56
6. Step 6: Final answer
   x = 1,577.43