Finding the Fourth Proportional to 2,309.54, 3,187.30 and 1,365.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.54 : 3,187.30 = 1,365.88 : x
2. Step 2: Convert to fraction form
   2,309.54/3,187.30 = 1,365.88/x
3. Step 3: Cross multiply
   2,309.54x = 3,187.30 × 1,365.88
4. Step 4: Simplify right side
   2,309.54x = 4,353,469.32
5. Step 5: Solve for x
   x = 4,353,469.32/2,309.54
6. Step 6: Final answer
   x = 1,884.99