Finding the Fourth Proportional to 2,190.86, 3,023.25 and 1,196.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.86 : 3,023.25 = 1,196.12 : x
2. Step 2: Convert to fraction form
   2,190.86/3,023.25 = 1,196.12/x
3. Step 3: Cross multiply
   2,190.86x = 3,023.25 × 1,196.12
4. Step 4: Simplify right side
   2,190.86x = 3,616,154.67
5. Step 5: Solve for x
   x = 3,616,154.67/2,190.86
6. Step 6: Final answer
   x = 1,650.57