Finding the Fourth Proportional to 2,309.57, 3,187.08 and 1,314.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.57 : 3,187.08 = 1,314.84 : x
2. Step 2: Convert to fraction form
   2,309.57/3,187.08 = 1,314.84/x
3. Step 3: Cross multiply
   2,309.57x = 3,187.08 × 1,314.84
4. Step 4: Simplify right side
   2,309.57x = 4,190,500.27
5. Step 5: Solve for x
   x = 4,190,500.27/2,309.57
6. Step 6: Final answer
   x = 1,814.41