Finding the Fourth Proportional to 6,398.72, 9,602.56 and 2,938.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,398.72 : 9,602.56 = 2,938.24 : x
2. Step 2: Convert to fraction form
   6,398.72/9,602.56 = 2,938.24/x
3. Step 3: Cross multiply
   6,398.72x = 9,602.56 × 2,938.24
4. Step 4: Simplify right side
   6,398.72x = 28,214,625.89
5. Step 5: Solve for x
   x = 28,214,625.89/6,398.72
6. Step 6: Final answer
   x = 4,409.42