Finding the Fourth Proportional to 2,388.82, 3,296.58 and 1,340.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.82 : 3,296.58 = 1,340.89 : x
2. Step 2: Convert to fraction form
   2,388.82/3,296.58 = 1,340.89/x
3. Step 3: Cross multiply
   2,388.82x = 3,296.58 × 1,340.89
4. Step 4: Simplify right side
   2,388.82x = 4,420,351.16
5. Step 5: Solve for x
   x = 4,420,351.16/2,388.82
6. Step 6: Final answer
   x = 1,850.43