Finding the Fourth Proportional to 3,868.58, 5,336.55 and 3,339.65

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.58 : 5,336.55 = 3,339.65 : x
2. Step 2: Convert to fraction form
   3,868.58/5,336.55 = 3,339.65/x
3. Step 3: Cross multiply
   3,868.58x = 5,336.55 × 3,339.65
4. Step 4: Simplify right side
   3,868.58x = 17,822,222.55
5. Step 5: Solve for x
   x = 17,822,222.55/3,868.58
6. Step 6: Final answer
   x = 4,606.91