Finding the Fourth Proportional to 2,406.01, 3,609.65 and 1,019.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.01 : 3,609.65 = 1,019.40 : x
2. Step 2: Convert to fraction form
   2,406.01/3,609.65 = 1,019.40/x
3. Step 3: Cross multiply
   2,406.01x = 3,609.65 × 1,019.40
4. Step 4: Simplify right side
   2,406.01x = 3,679,662.40
5. Step 5: Solve for x
   x = 3,679,662.40/2,406.01
6. Step 6: Final answer
   x = 1,529.36