Finding the Fourth Proportional to 2,388.50, 3,296.15 and 1,340.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.50 : 3,296.15 = 1,340.59 : x
2. Step 2: Convert to fraction form
   2,388.50/3,296.15 = 1,340.59/x
3. Step 3: Cross multiply
   2,388.50x = 3,296.15 × 1,340.59
4. Step 4: Simplify right side
   2,388.50x = 4,418,772.60
5. Step 5: Solve for x
   x = 4,418,772.60/2,388.50
6. Step 6: Final answer
   x = 1,850.02