Finding the Fourth Proportional to 2,190.85, 3,023.34 and 1,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.85 : 3,023.34 = 1,196.15 : x
2. Step 2: Convert to fraction form
   2,190.85/3,023.34 = 1,196.15/x
3. Step 3: Cross multiply
   2,190.85x = 3,023.34 × 1,196.15
4. Step 4: Simplify right side
   2,190.85x = 3,616,372.27
5. Step 5: Solve for x
   x = 3,616,372.27/2,190.85
6. Step 6: Final answer
   x = 1,650.67