Finding the Fourth Proportional to 3,820.15, 5,704.09 and 3,422.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.15 : 5,704.09 = 3,422.26 : x
2. Step 2: Convert to fraction form
   3,820.15/5,704.09 = 3,422.26/x
3. Step 3: Cross multiply
   3,820.15x = 5,704.09 × 3,422.26
4. Step 4: Simplify right side
   3,820.15x = 19,520,879.04
5. Step 5: Solve for x
   x = 19,520,879.04/3,820.15
6. Step 6: Final answer
   x = 5,109.98