Finding the Fourth Proportional to 3,517.72, 5,274.78 and 2,057.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,517.72 : 5,274.78 = 2,057.32 : x
2. Step 2: Convert to fraction form
   3,517.72/5,274.78 = 2,057.32/x
3. Step 3: Cross multiply
   3,517.72x = 5,274.78 × 2,057.32
4. Step 4: Simplify right side
   3,517.72x = 10,851,910.39
5. Step 5: Solve for x
   x = 10,851,910.39/3,517.72
6. Step 6: Final answer
   x = 3,084.93