Finding the Fourth Proportional to 2,190.69, 3,021.84 and 1,403.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.69 : 3,021.84 = 1,403.37 : x
2. Step 2: Convert to fraction form
   2,190.69/3,021.84 = 1,403.37/x
3. Step 3: Cross multiply
   2,190.69x = 3,021.84 × 1,403.37
4. Step 4: Simplify right side
   2,190.69x = 4,240,759.60
5. Step 5: Solve for x
   x = 4,240,759.60/2,190.69
6. Step 6: Final answer
   x = 1,935.81