Finding the Fourth Proportional to 2,387.36, 3,294.63 and 1,339.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.36 : 3,294.63 = 1,339.46 : x
2. Step 2: Convert to fraction form
   2,387.36/3,294.63 = 1,339.46/x
3. Step 3: Cross multiply
   2,387.36x = 3,294.63 × 1,339.46
4. Step 4: Simplify right side
   2,387.36x = 4,413,025.10
5. Step 5: Solve for x
   x = 4,413,025.10/2,387.36
6. Step 6: Final answer
   x = 1,848.50