Finding the Fourth Proportional to 2,309.48, 3,187.34 and 1,314.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.48 : 3,187.34 = 1,314.60 : x
2. Step 2: Convert to fraction form
   2,309.48/3,187.34 = 1,314.60/x
3. Step 3: Cross multiply
   2,309.48x = 3,187.34 × 1,314.60
4. Step 4: Simplify right side
   2,309.48x = 4,190,071.30
5. Step 5: Solve for x
   x = 4,190,071.30/2,309.48
6. Step 6: Final answer
   x = 1,814.29