Finding the Fourth Proportional to 3,488.94, 5,207.69 and 3,196.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.94 : 5,207.69 = 3,196.67 : x
2. Step 2: Convert to fraction form
   3,488.94/5,207.69 = 3,196.67/x
3. Step 3: Cross multiply
   3,488.94x = 5,207.69 × 3,196.67
4. Step 4: Simplify right side
   3,488.94x = 16,647,248.35
5. Step 5: Solve for x
   x = 16,647,248.35/3,488.94
6. Step 6: Final answer
   x = 4,771.43