Finding the Fourth Proportional to 2,185.59, 3,016.20 and 1,190.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.59 : 3,016.20 = 1,190.88 : x
2. Step 2: Convert to fraction form
   2,185.59/3,016.20 = 1,190.88/x
3. Step 3: Cross multiply
   2,185.59x = 3,016.20 × 1,190.88
4. Step 4: Simplify right side
   2,185.59x = 3,591,932.26
5. Step 5: Solve for x
   x = 3,591,932.26/2,185.59
6. Step 6: Final answer
   x = 1,643.46