Finding the Fourth Proportional to 3,404.39, 5,105.27 and 1,324.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.39 : 5,105.27 = 1,324.13 : x
2. Step 2: Convert to fraction form
   3,404.39/5,105.27 = 1,324.13/x
3. Step 3: Cross multiply
   3,404.39x = 5,105.27 × 1,324.13
4. Step 4: Simplify right side
   3,404.39x = 6,760,018.95
5. Step 5: Solve for x
   x = 6,760,018.95/3,404.39
6. Step 6: Final answer
   x = 1,985.68