Finding the Fourth Proportional to 3,405.69, 5,107.32 and 1,097.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405.69 : 5,107.32 = 1,097.19 : x
2. Step 2: Convert to fraction form
   3,405.69/5,107.32 = 1,097.19/x
3. Step 3: Cross multiply
   3,405.69x = 5,107.32 × 1,097.19
4. Step 4: Simplify right side
   3,405.69x = 5,603,700.43
5. Step 5: Solve for x
   x = 5,603,700.43/3,405.69
6. Step 6: Final answer
   x = 1,645.39