Finding the Fourth Proportional to 2,306.41, 3,182.61 and 1,311.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.41 : 3,182.61 = 1,311.82 : x
2. Step 2: Convert to fraction form
   2,306.41/3,182.61 = 1,311.82/x
3. Step 3: Cross multiply
   2,306.41x = 3,182.61 × 1,311.82
4. Step 4: Simplify right side
   2,306.41x = 4,175,011.45
5. Step 5: Solve for x
   x = 4,175,011.45/2,306.41
6. Step 6: Final answer
   x = 1,810.18