Finding the Fourth Proportional to 2,186.22, 3,016.83 and 1,242.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.22 : 3,016.83 = 1,242.03 : x
2. Step 2: Convert to fraction form
   2,186.22/3,016.83 = 1,242.03/x
3. Step 3: Cross multiply
   2,186.22x = 3,016.83 × 1,242.03
4. Step 4: Simplify right side
   2,186.22x = 3,746,993.36
5. Step 5: Solve for x
   x = 3,746,993.36/2,186.22
6. Step 6: Final answer
   x = 1,713.91