Finding the Fourth Proportional to 2,136.88, 3,205.59 and 1,097.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.88 : 3,205.59 = 1,097.47 : x
2. Step 2: Convert to fraction form
   2,136.88/3,205.59 = 1,097.47/x
3. Step 3: Cross multiply
   2,136.88x = 3,205.59 × 1,097.47
4. Step 4: Simplify right side
   2,136.88x = 3,518,038.86
5. Step 5: Solve for x
   x = 3,518,038.86/2,136.88
6. Step 6: Final answer
   x = 1,646.34