Finding the Fourth Proportional to 2,698.09, 3,722.56 and 1,636.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,698.09 : 3,722.56 = 1,636.25 : x
2. Step 2: Convert to fraction form
   2,698.09/3,722.56 = 1,636.25/x
3. Step 3: Cross multiply
   2,698.09x = 3,722.56 × 1,636.25
4. Step 4: Simplify right side
   2,698.09x = 6,091,016.10
5. Step 5: Solve for x
   x = 6,091,016.10/2,698.09
6. Step 6: Final answer
   x = 2,257.53