Finding the Fourth Proportional to 2,982.88, 4,472.86 and 902.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,982.88 : 4,472.86 = 902.48 : x
2. Step 2: Convert to fraction form
   2,982.88/4,472.86 = 902.48/x
3. Step 3: Cross multiply
   2,982.88x = 4,472.86 × 902.48
4. Step 4: Simplify right side
   2,982.88x = 4,036,666.69
5. Step 5: Solve for x
   x = 4,036,666.69/2,982.88
6. Step 6: Final answer
   x = 1,353.28