Finding the Fourth Proportional to 2,074.86, 2,863.32 and 1,143.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.86 : 2,863.32 = 1,143.36 : x
2. Step 2: Convert to fraction form
   2,074.86/2,863.32 = 1,143.36/x
3. Step 3: Cross multiply
   2,074.86x = 2,863.32 × 1,143.36
4. Step 4: Simplify right side
   2,074.86x = 3,273,805.56
5. Step 5: Solve for x
   x = 3,273,805.56/2,074.86
6. Step 6: Final answer
   x = 1,577.84