Finding the Fourth Proportional to 2,308.75, 3,186.20 and 1,314.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.75 : 3,186.20 = 1,314.35 : x
2. Step 2: Convert to fraction form
   2,308.75/3,186.20 = 1,314.35/x
3. Step 3: Cross multiply
   2,308.75x = 3,186.20 × 1,314.35
4. Step 4: Simplify right side
   2,308.75x = 4,187,781.27
5. Step 5: Solve for x
   x = 4,187,781.27/2,308.75
6. Step 6: Final answer
   x = 1,813.88