Finding the Fourth Proportional to 3,105.77, 4,658.56 and 914.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.77 : 4,658.56 = 914.54 : x
2. Step 2: Convert to fraction form
   3,105.77/4,658.56 = 914.54/x
3. Step 3: Cross multiply
   3,105.77x = 4,658.56 × 914.54
4. Step 4: Simplify right side
   3,105.77x = 4,260,439.46
5. Step 5: Solve for x
   x = 4,260,439.46/3,105.77
6. Step 6: Final answer
   x = 1,371.78