Finding the Fourth Proportional to 2,308.14, 3,185.49 and 1,313.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.14 : 3,185.49 = 1,313.62 : x
2. Step 2: Convert to fraction form
   2,308.14/3,185.49 = 1,313.62/x
3. Step 3: Cross multiply
   2,308.14x = 3,185.49 × 1,313.62
4. Step 4: Simplify right side
   2,308.14x = 4,184,520.34
5. Step 5: Solve for x
   x = 4,184,520.34/2,308.14
6. Step 6: Final answer
   x = 1,812.94