Finding the Fourth Proportional to 2,136.98, 3,199.67 and 1,108.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.98 : 3,199.67 = 1,108.82 : x
2. Step 2: Convert to fraction form
   2,136.98/3,199.67 = 1,108.82/x
3. Step 3: Cross multiply
   2,136.98x = 3,199.67 × 1,108.82
4. Step 4: Simplify right side
   2,136.98x = 3,547,842.09
5. Step 5: Solve for x
   x = 3,547,842.09/2,136.98
6. Step 6: Final answer
   x = 1,660.22