Finding the Fourth Proportional to 2,196.53, 3,287.09 and 1,801.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.53 : 3,287.09 = 1,801.65 : x
2. Step 2: Convert to fraction form
   2,196.53/3,287.09 = 1,801.65/x
3. Step 3: Cross multiply
   2,196.53x = 3,287.09 × 1,801.65
4. Step 4: Simplify right side
   2,196.53x = 5,922,185.70
5. Step 5: Solve for x
   x = 5,922,185.70/2,196.53
6. Step 6: Final answer
   x = 2,696.16