Finding the Fourth Proportional to 2,436.42, 3,647.72 and 2,205.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.42 : 3,647.72 = 2,205.74 : x
2. Step 2: Convert to fraction form
   2,436.42/3,647.72 = 2,205.74/x
3. Step 3: Cross multiply
   2,436.42x = 3,647.72 × 2,205.74
4. Step 4: Simplify right side
   2,436.42x = 8,045,921.91
5. Step 5: Solve for x
   x = 8,045,921.91/2,436.42
6. Step 6: Final answer
   x = 3,302.35