Finding the Fourth Proportional to 2,306.71, 3,182.38 and 1,311.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.71 : 3,182.38 = 1,311.49 : x
2. Step 2: Convert to fraction form
   2,306.71/3,182.38 = 1,311.49/x
3. Step 3: Cross multiply
   2,306.71x = 3,182.38 × 1,311.49
4. Step 4: Simplify right side
   2,306.71x = 4,173,659.55
5. Step 5: Solve for x
   x = 4,173,659.55/2,306.71
6. Step 6: Final answer
   x = 1,809.36