Finding the Fourth Proportional to 2,190.38, 3,022.73 and 1,404.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.38 : 3,022.73 = 1,404.43 : x
2. Step 2: Convert to fraction form
   2,190.38/3,022.73 = 1,404.43/x
3. Step 3: Cross multiply
   2,190.38x = 3,022.73 × 1,404.43
4. Step 4: Simplify right side
   2,190.38x = 4,245,212.69
5. Step 5: Solve for x
   x = 4,245,212.69/2,190.38
6. Step 6: Final answer
   x = 1,938.12