Finding the Fourth Proportional to 2,387.36, 3,294.54 and 1,339.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.36 : 3,294.54 = 1,339.42 : x
2. Step 2: Convert to fraction form
   2,387.36/3,294.54 = 1,339.42/x
3. Step 3: Cross multiply
   2,387.36x = 3,294.54 × 1,339.42
4. Step 4: Simplify right side
   2,387.36x = 4,412,772.77
5. Step 5: Solve for x
   x = 4,412,772.77/2,387.36
6. Step 6: Final answer
   x = 1,848.39