Finding the Fourth Proportional to 2,164.20, 2,986.04 and 1,454.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.20 : 2,986.04 = 1,454.78 : x
2. Step 2: Convert to fraction form
   2,164.20/2,986.04 = 1,454.78/x
3. Step 3: Cross multiply
   2,164.20x = 2,986.04 × 1,454.78
4. Step 4: Simplify right side
   2,164.20x = 4,344,031.27
5. Step 5: Solve for x
   x = 4,344,031.27/2,164.20
6. Step 6: Final answer
   x = 2,007.22