Finding the Fourth Proportional to 2,185.95, 3,016.59 and 1,191.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.95 : 3,016.59 = 1,191.18 : x
2. Step 2: Convert to fraction form
   2,185.95/3,016.59 = 1,191.18/x
3. Step 3: Cross multiply
   2,185.95x = 3,016.59 × 1,191.18
4. Step 4: Simplify right side
   2,185.95x = 3,593,301.68
5. Step 5: Solve for x
   x = 3,593,301.68/2,185.95
6. Step 6: Final answer
   x = 1,643.82