Finding the Fourth Proportional to 2,190.98, 3,023.63 and 1,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.98 : 3,023.63 = 1,196.30 : x
2. Step 2: Convert to fraction form
   2,190.98/3,023.63 = 1,196.30/x
3. Step 3: Cross multiply
   2,190.98x = 3,023.63 × 1,196.30
4. Step 4: Simplify right side
   2,190.98x = 3,617,174.63
5. Step 5: Solve for x
   x = 3,617,174.63/2,190.98
6. Step 6: Final answer
   x = 1,650.94