Finding the Fourth Proportional to 2,384.72, 3,287.46 and 1,674.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.72 : 3,287.46 = 1,674.40 : x
2. Step 2: Convert to fraction form
   2,384.72/3,287.46 = 1,674.40/x
3. Step 3: Cross multiply
   2,384.72x = 3,287.46 × 1,674.40
4. Step 4: Simplify right side
   2,384.72x = 5,504,523.02
5. Step 5: Solve for x
   x = 5,504,523.02/2,384.72
6. Step 6: Final answer
   x = 2,308.25