Finding the Fourth Proportional to 2,136.72, 3,205.60 and 1,162.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.72 : 3,205.60 = 1,162.56 : x
2. Step 2: Convert to fraction form
   2,136.72/3,205.60 = 1,162.56/x
3. Step 3: Cross multiply
   2,136.72x = 3,205.60 × 1,162.56
4. Step 4: Simplify right side
   2,136.72x = 3,726,702.34
5. Step 5: Solve for x
   x = 3,726,702.34/2,136.72
6. Step 6: Final answer
   x = 1,744.12