Finding the Fourth Proportional to 3,158.77, 4,737.89 and 1,078.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,158.77 : 4,737.89 = 1,078.83 : x
2. Step 2: Convert to fraction form
   3,158.77/4,737.89 = 1,078.83/x
3. Step 3: Cross multiply
   3,158.77x = 4,737.89 × 1,078.83
4. Step 4: Simplify right side
   3,158.77x = 5,111,377.87
5. Step 5: Solve for x
   x = 5,111,377.87/3,158.77
6. Step 6: Final answer
   x = 1,618.15