Finding the Fourth Proportional to 3,480.04, 5,223.72 and 3,401.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,480.04 : 5,223.72 = 3,401.68 : x
2. Step 2: Convert to fraction form
   3,480.04/5,223.72 = 3,401.68/x
3. Step 3: Cross multiply
   3,480.04x = 5,223.72 × 3,401.68
4. Step 4: Simplify right side
   3,480.04x = 17,769,423.85
5. Step 5: Solve for x
   x = 17,769,423.85/3,480.04
6. Step 6: Final answer
   x = 5,106.10