Finding the Fourth Proportional to 2,354.12, 3,248.78 and 1,306.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.12 : 3,248.78 = 1,306.38 : x
2. Step 2: Convert to fraction form
   2,354.12/3,248.78 = 1,306.38/x
3. Step 3: Cross multiply
   2,354.12x = 3,248.78 × 1,306.38
4. Step 4: Simplify right side
   2,354.12x = 4,244,141.22
5. Step 5: Solve for x
   x = 4,244,141.22/2,354.12
6. Step 6: Final answer
   x = 1,802.86