Finding the Fourth Proportional to 2,356.14, 3,251.55 and 1,308.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.14 : 3,251.55 = 1,308.30 : x
2. Step 2: Convert to fraction form
   2,356.14/3,251.55 = 1,308.30/x
3. Step 3: Cross multiply
   2,356.14x = 3,251.55 × 1,308.30
4. Step 4: Simplify right side
   2,356.14x = 4,254,002.87
5. Step 5: Solve for x
   x = 4,254,002.87/2,356.14
6. Step 6: Final answer
   x = 1,805.50