Finding the Fourth Proportional to 2,305.39, 3,181.71 and 1,310.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,305.39 : 3,181.71 = 1,310.82 : x
2. Step 2: Convert to fraction form
   2,305.39/3,181.71 = 1,310.82/x
3. Step 3: Cross multiply
   2,305.39x = 3,181.71 × 1,310.82
4. Step 4: Simplify right side
   2,305.39x = 4,170,631.95
5. Step 5: Solve for x
   x = 4,170,631.95/2,305.39
6. Step 6: Final answer
   x = 1,809.08