Finding the Fourth Proportional to 2,308.18, 3,185.24 and 1,313.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.18 : 3,185.24 = 1,313.43 : x
2. Step 2: Convert to fraction form
   2,308.18/3,185.24 = 1,313.43/x
3. Step 3: Cross multiply
   2,308.18x = 3,185.24 × 1,313.43
4. Step 4: Simplify right side
   2,308.18x = 4,183,611.07
5. Step 5: Solve for x
   x = 4,183,611.07/2,308.18
6. Step 6: Final answer
   x = 1,812.52