Finding the Fourth Proportional to 3,665.08, 5,496.18 and 1,909.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.08 : 5,496.18 = 1,909.54 : x
2. Step 2: Convert to fraction form
   3,665.08/5,496.18 = 1,909.54/x
3. Step 3: Cross multiply
   3,665.08x = 5,496.18 × 1,909.54
4. Step 4: Simplify right side
   3,665.08x = 10,495,175.56
5. Step 5: Solve for x
   x = 10,495,175.56/3,665.08
6. Step 6: Final answer
   x = 2,863.56