Finding the Fourth Proportional to 2,975.15, 4,105.78 and 1,648.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,975.15 : 4,105.78 = 1,648.83 : x
2. Step 2: Convert to fraction form
   2,975.15/4,105.78 = 1,648.83/x
3. Step 3: Cross multiply
   2,975.15x = 4,105.78 × 1,648.83
4. Step 4: Simplify right side
   2,975.15x = 6,769,730.69
5. Step 5: Solve for x
   x = 6,769,730.69/2,975.15
6. Step 6: Final answer
   x = 2,275.42