Finding the Fourth Proportional to 2,311.05, 3,468.27 and 1,270.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.05 : 3,468.27 = 1,270.85 : x
2. Step 2: Convert to fraction form
   2,311.05/3,468.27 = 1,270.85/x
3. Step 3: Cross multiply
   2,311.05x = 3,468.27 × 1,270.85
4. Step 4: Simplify right side
   2,311.05x = 4,407,662.78
5. Step 5: Solve for x
   x = 4,407,662.78/2,311.05
6. Step 6: Final answer
   x = 1,907.22