Finding the Fourth Proportional to 2,942.96, 4,406.52 and 1,478.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.96 : 4,406.52 = 1,478.48 : x
2. Step 2: Convert to fraction form
   2,942.96/4,406.52 = 1,478.48/x
3. Step 3: Cross multiply
   2,942.96x = 4,406.52 × 1,478.48
4. Step 4: Simplify right side
   2,942.96x = 6,514,951.69
5. Step 5: Solve for x
   x = 6,514,951.69/2,942.96
6. Step 6: Final answer
   x = 2,213.74