Finding the Fourth Proportional to 2,354.27, 3,248.78 and 1,306.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.27 : 3,248.78 = 1,306.31 : x
2. Step 2: Convert to fraction form
   2,354.27/3,248.78 = 1,306.31/x
3. Step 3: Cross multiply
   2,354.27x = 3,248.78 × 1,306.31
4. Step 4: Simplify right side
   2,354.27x = 4,243,891.03
5. Step 5: Solve for x
   x = 4,243,891.03/2,354.27
6. Step 6: Final answer
   x = 1,802.64