Finding the Fourth Proportional to 2,356.25, 3,251.81 and 1,308.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.25 : 3,251.81 = 1,308.38 : x
2. Step 2: Convert to fraction form
   2,356.25/3,251.81 = 1,308.38/x
3. Step 3: Cross multiply
   2,356.25x = 3,251.81 × 1,308.38
4. Step 4: Simplify right side
   2,356.25x = 4,254,590.18
5. Step 5: Solve for x
   x = 4,254,590.18/2,356.25
6. Step 6: Final answer
   x = 1,805.67