Finding the Fourth Proportional to 2,185.69, 3,016.26 and 1,190.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.69 : 3,016.26 = 1,190.97 : x
2. Step 2: Convert to fraction form
   2,185.69/3,016.26 = 1,190.97/x
3. Step 3: Cross multiply
   2,185.69x = 3,016.26 × 1,190.97
4. Step 4: Simplify right side
   2,185.69x = 3,592,275.17
5. Step 5: Solve for x
   x = 3,592,275.17/2,185.69
6. Step 6: Final answer
   x = 1,643.54