Finding the Fourth Proportional to 1,456.48, 2,184.57 and 676.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.48 : 2,184.57 = 676.15 : x
2. Step 2: Convert to fraction form
   1,456.48/2,184.57 = 676.15/x
3. Step 3: Cross multiply
   1,456.48x = 2,184.57 × 676.15
4. Step 4: Simplify right side
   1,456.48x = 1,477,091.54
5. Step 5: Solve for x
   x = 1,477,091.54/1,456.48
6. Step 6: Final answer
   x = 1,014.15