Finding the Fourth Proportional to 2,306.41, 3,182.52 and 1,311.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.41 : 3,182.52 = 1,311.78 : x
2. Step 2: Convert to fraction form
   2,306.41/3,182.52 = 1,311.78/x
3. Step 3: Cross multiply
   2,306.41x = 3,182.52 × 1,311.78
4. Step 4: Simplify right side
   2,306.41x = 4,174,766.09
5. Step 5: Solve for x
   x = 4,174,766.09/2,306.41
6. Step 6: Final answer
   x = 1,810.07