Finding the Fourth Proportional to 2,439.96, 3,655.34 and 1,205.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.96 : 3,655.34 = 1,205.94 : x
2. Step 2: Convert to fraction form
   2,439.96/3,655.34 = 1,205.94/x
3. Step 3: Cross multiply
   2,439.96x = 3,655.34 × 1,205.94
4. Step 4: Simplify right side
   2,439.96x = 4,408,120.72
5. Step 5: Solve for x
   x = 4,408,120.72/2,439.96
6. Step 6: Final answer
   x = 1,806.64