Finding the Fourth Proportional to 2,404.79, 3,605.19 and 1,019.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.79 : 3,605.19 = 1,019.21 : x
2. Step 2: Convert to fraction form
   2,404.79/3,605.19 = 1,019.21/x
3. Step 3: Cross multiply
   2,404.79x = 3,605.19 × 1,019.21
4. Step 4: Simplify right side
   2,404.79x = 3,674,445.70
5. Step 5: Solve for x
   x = 3,674,445.70/2,404.79
6. Step 6: Final answer
   x = 1,527.97