Finding the Fourth Proportional to 2,387.45, 3,294.98 and 1,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.45 : 3,294.98 = 1,339.50 : x
2. Step 2: Convert to fraction form
   2,387.45/3,294.98 = 1,339.50/x
3. Step 3: Cross multiply
   2,387.45x = 3,294.98 × 1,339.50
4. Step 4: Simplify right side
   2,387.45x = 4,413,619.01
5. Step 5: Solve for x
   x = 4,413,619.01/2,387.45
6. Step 6: Final answer
   x = 1,848.68