Finding the Fourth Proportional to 2,347.38, 3,238.71 and 1,339.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,347.38 : 3,238.71 = 1,339.10 : x
2. Step 2: Convert to fraction form
   2,347.38/3,238.71 = 1,339.10/x
3. Step 3: Cross multiply
   2,347.38x = 3,238.71 × 1,339.10
4. Step 4: Simplify right side
   2,347.38x = 4,336,940.37
5. Step 5: Solve for x
   x = 4,336,940.37/2,347.38
6. Step 6: Final answer
   x = 1,847.57