Finding the Fourth Proportional to 2,707.92, 4,062.60 and 976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.92 : 4,062.60 = 976.72 : x
2. Step 2: Convert to fraction form
   2,707.92/4,062.60 = 976.72/x
3. Step 3: Cross multiply
   2,707.92x = 4,062.60 × 976.72
4. Step 4: Simplify right side
   2,707.92x = 3,968,022.67
5. Step 5: Solve for x
   x = 3,968,022.67/2,707.92
6. Step 6: Final answer
   x = 1,465.34