Finding the Fourth Proportional to 2,459.48, 3,390.24 and 1,672.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.48 : 3,390.24 = 1,672.16 : x
2. Step 2: Convert to fraction form
   2,459.48/3,390.24 = 1,672.16/x
3. Step 3: Cross multiply
   2,459.48x = 3,390.24 × 1,672.16
4. Step 4: Simplify right side
   2,459.48x = 5,669,023.72
5. Step 5: Solve for x
   x = 5,669,023.72/2,459.48
6. Step 6: Final answer
   x = 2,304.97