Finding the Fourth Proportional to 2,185.52, 3,016 and 1,190.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.52 : 3,016 = 1,190.72 : x
2. Step 2: Convert to fraction form
   2,185.52/3,016 = 1,190.72/x
3. Step 3: Cross multiply
   2,185.52x = 3,016 × 1,190.72
4. Step 4: Simplify right side
   2,185.52x = 3,591,211.52
5. Step 5: Solve for x
   x = 3,591,211.52/2,185.52
6. Step 6: Final answer
   x = 1,643.18