Finding the Fourth Proportional to 2,189.32, 3,020.97 and 1,404.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.32 : 3,020.97 = 1,404.43 : x
2. Step 2: Convert to fraction form
   2,189.32/3,020.97 = 1,404.43/x
3. Step 3: Cross multiply
   2,189.32x = 3,020.97 × 1,404.43
4. Step 4: Simplify right side
   2,189.32x = 4,242,740.90
5. Step 5: Solve for x
   x = 4,242,740.90/2,189.32
6. Step 6: Final answer
   x = 1,937.93