Finding the Fourth Proportional to 2,910.08, 4,365.05 and 718.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,910.08 : 4,365.05 = 718.83 : x
2. Step 2: Convert to fraction form
   2,910.08/4,365.05 = 718.83/x
3. Step 3: Cross multiply
   2,910.08x = 4,365.05 × 718.83
4. Step 4: Simplify right side
   2,910.08x = 3,137,728.89
5. Step 5: Solve for x
   x = 3,137,728.89/2,910.08
6. Step 6: Final answer
   x = 1,078.23