Finding the Fourth Proportional to 3,488.62, 5,227.69 and 3,159.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.62 : 5,227.69 = 3,159.34 : x
2. Step 2: Convert to fraction form
   3,488.62/5,227.69 = 3,159.34/x
3. Step 3: Cross multiply
   3,488.62x = 5,227.69 × 3,159.34
4. Step 4: Simplify right side
   3,488.62x = 16,516,050.12
5. Step 5: Solve for x
   x = 16,516,050.12/3,488.62
6. Step 6: Final answer
   x = 4,734.26