Finding the Fourth Proportional to 2,910.46, 4,365.61 and 719.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,910.46 : 4,365.61 = 719.14 : x
2. Step 2: Convert to fraction form
   2,910.46/4,365.61 = 719.14/x
3. Step 3: Cross multiply
   2,910.46x = 4,365.61 × 719.14
4. Step 4: Simplify right side
   2,910.46x = 3,139,484.78
5. Step 5: Solve for x
   x = 3,139,484.78/2,910.46
6. Step 6: Final answer
   x = 1,078.69