Finding the Fourth Proportional to 2,387.72, 3,294.96 and 1,339.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.72 : 3,294.96 = 1,339.58 : x
2. Step 2: Convert to fraction form
   2,387.72/3,294.96 = 1,339.58/x
3. Step 3: Cross multiply
   2,387.72x = 3,294.96 × 1,339.58
4. Step 4: Simplify right side
   2,387.72x = 4,413,862.52
5. Step 5: Solve for x
   x = 4,413,862.52/2,387.72
6. Step 6: Final answer
   x = 1,848.57