Finding the Fourth Proportional to 2,405.94, 3,609.32 and 1,107.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.94 : 3,609.32 = 1,107.38 : x
2. Step 2: Convert to fraction form
   2,405.94/3,609.32 = 1,107.38/x
3. Step 3: Cross multiply
   2,405.94x = 3,609.32 × 1,107.38
4. Step 4: Simplify right side
   2,405.94x = 3,996,865.20
5. Step 5: Solve for x
   x = 3,996,865.20/2,405.94
6. Step 6: Final answer
   x = 1,661.25