Finding the Fourth Proportional to 3,404.24, 5,106.20 and 939.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.24 : 5,106.20 = 939.04 : x
2. Step 2: Convert to fraction form
   3,404.24/5,106.20 = 939.04/x
3. Step 3: Cross multiply
   3,404.24x = 5,106.20 × 939.04
4. Step 4: Simplify right side
   3,404.24x = 4,794,926.05
5. Step 5: Solve for x
   x = 4,794,926.05/3,404.24
6. Step 6: Final answer
   x = 1,408.52