Finding the Fourth Proportional to 2,136.63, 3,205.59 and 675.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.63 : 3,205.59 = 675.81 : x
2. Step 2: Convert to fraction form
   2,136.63/3,205.59 = 675.81/x
3. Step 3: Cross multiply
   2,136.63x = 3,205.59 × 675.81
4. Step 4: Simplify right side
   2,136.63x = 2,166,369.78
5. Step 5: Solve for x
   x = 2,166,369.78/2,136.63
6. Step 6: Final answer
   x = 1,013.92