Finding the Fourth Proportional to 4,942.35, 7,411.37 and 1,478.79

Step by Step Solution

1. Step 1: Write the proportion equation
   4,942.35 : 7,411.37 = 1,478.79 : x
2. Step 2: Convert to fraction form
   4,942.35/7,411.37 = 1,478.79/x
3. Step 3: Cross multiply
   4,942.35x = 7,411.37 × 1,478.79
4. Step 4: Simplify right side
   4,942.35x = 10,959,852.45
5. Step 5: Solve for x
   x = 10,959,852.45/4,942.35
6. Step 6: Final answer
   x = 2,217.54