Finding the Fourth Proportional to 2,190.91, 3,023.46 and 1,196.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.91 : 3,023.46 = 1,196.20 : x
2. Step 2: Convert to fraction form
   2,190.91/3,023.46 = 1,196.20/x
3. Step 3: Cross multiply
   2,190.91x = 3,023.46 × 1,196.20
4. Step 4: Simplify right side
   2,190.91x = 3,616,662.85
5. Step 5: Solve for x
   x = 3,616,662.85/2,190.91
6. Step 6: Final answer
   x = 1,650.76