Finding the Fourth Proportional to 2,771.16, 4,158.57 and 1,310.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,771.16 : 4,158.57 = 1,310.43 : x
2. Step 2: Convert to fraction form
   2,771.16/4,158.57 = 1,310.43/x
3. Step 3: Cross multiply
   2,771.16x = 4,158.57 × 1,310.43
4. Step 4: Simplify right side
   2,771.16x = 5,449,514.89
5. Step 5: Solve for x
   x = 5,449,514.89/2,771.16
6. Step 6: Final answer
   x = 1,966.51