Finding the Fourth Proportional to 2,936.66, 4,405.89 and 1,205.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,936.66 : 4,405.89 = 1,205.42 : x
2. Step 2: Convert to fraction form
   2,936.66/4,405.89 = 1,205.42/x
3. Step 3: Cross multiply
   2,936.66x = 4,405.89 × 1,205.42
4. Step 4: Simplify right side
   2,936.66x = 5,310,947.92
5. Step 5: Solve for x
   x = 5,310,947.92/2,936.66
6. Step 6: Final answer
   x = 1,808.50