Finding the Fourth Proportional to 2,419.11, 3,339.87 and 1,536.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.11 : 3,339.87 = 1,536.42 : x
2. Step 2: Convert to fraction form
   2,419.11/3,339.87 = 1,536.42/x
3. Step 3: Cross multiply
   2,419.11x = 3,339.87 × 1,536.42
4. Step 4: Simplify right side
   2,419.11x = 5,131,443.07
5. Step 5: Solve for x
   x = 5,131,443.07/2,419.11
6. Step 6: Final answer
   x = 2,121.21