Finding the Fourth Proportional to 2,185.83, 3,016.50 and 1,191.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.83 : 3,016.50 = 1,191.18 : x
2. Step 2: Convert to fraction form
   2,185.83/3,016.50 = 1,191.18/x
3. Step 3: Cross multiply
   2,185.83x = 3,016.50 × 1,191.18
4. Step 4: Simplify right side
   2,185.83x = 3,593,194.47
5. Step 5: Solve for x
   x = 3,593,194.47/2,185.83
6. Step 6: Final answer
   x = 1,643.86