Finding the Fourth Proportional to 2,309.39, 3,187.14 and 1,314.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.39 : 3,187.14 = 1,314.71 : x
2. Step 2: Convert to fraction form
   2,309.39/3,187.14 = 1,314.71/x
3. Step 3: Cross multiply
   2,309.39x = 3,187.14 × 1,314.71
4. Step 4: Simplify right side
   2,309.39x = 4,190,164.83
5. Step 5: Solve for x
   x = 4,190,164.83/2,309.39
6. Step 6: Final answer
   x = 1,814.40