Finding the Fourth Proportional to 2,185.93, 3,016.62 and 1,191.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.93 : 3,016.62 = 1,191.23 : x
2. Step 2: Convert to fraction form
   2,185.93/3,016.62 = 1,191.23/x
3. Step 3: Cross multiply
   2,185.93x = 3,016.62 × 1,191.23
4. Step 4: Simplify right side
   2,185.93x = 3,593,467.20
5. Step 5: Solve for x
   x = 3,593,467.20/2,185.93
6. Step 6: Final answer
   x = 1,643.91