Finding the Fourth Proportional to 5,297.72, 7,310.82 and 2,939.87

Step by Step Solution

1. Step 1: Write the proportion equation
   5,297.72 : 7,310.82 = 2,939.87 : x
2. Step 2: Convert to fraction form
   5,297.72/7,310.82 = 2,939.87/x
3. Step 3: Cross multiply
   5,297.72x = 7,310.82 × 2,939.87
4. Step 4: Simplify right side
   5,297.72x = 21,492,825.89
5. Step 5: Solve for x
   x = 21,492,825.89/5,297.72
6. Step 6: Final answer
   x = 4,056.99