Finding the Fourth Proportional to 2,094.85, 3,142.31 and 862.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,094.85 : 3,142.31 = 862.27 : x
2. Step 2: Convert to fraction form
   2,094.85/3,142.31 = 862.27/x
3. Step 3: Cross multiply
   2,094.85x = 3,142.31 × 862.27
4. Step 4: Simplify right side
   2,094.85x = 2,709,519.64
5. Step 5: Solve for x
   x = 2,709,519.64/2,094.85
6. Step 6: Final answer
   x = 1,293.42