Finding the Fourth Proportional to 2,306.25, 3,182.61 and 1,258.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.25 : 3,182.61 = 1,258.31 : x
2. Step 2: Convert to fraction form
   2,306.25/3,182.61 = 1,258.31/x
3. Step 3: Cross multiply
   2,306.25x = 3,182.61 × 1,258.31
4. Step 4: Simplify right side
   2,306.25x = 4,004,709.99
5. Step 5: Solve for x
   x = 4,004,709.99/2,306.25
6. Step 6: Final answer
   x = 1,736.46