Finding the Fourth Proportional to 2,419.31, 3,626.31 and 1,249.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.31 : 3,626.31 = 1,249.40 : x
2. Step 2: Convert to fraction form
   2,419.31/3,626.31 = 1,249.40/x
3. Step 3: Cross multiply
   2,419.31x = 3,626.31 × 1,249.40
4. Step 4: Simplify right side
   2,419.31x = 4,530,718.44
5. Step 5: Solve for x
   x = 4,530,718.44/2,419.31
6. Step 6: Final answer
   x = 1,872.73