Finding the Fourth Proportional to 3,719.31, 5,570.17 and 3,229.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.31 : 5,570.17 = 3,229.70 : x
2. Step 2: Convert to fraction form
   3,719.31/5,570.17 = 3,229.70/x
3. Step 3: Cross multiply
   3,719.31x = 5,570.17 × 3,229.70
4. Step 4: Simplify right side
   3,719.31x = 17,989,978.05
5. Step 5: Solve for x
   x = 17,989,978.05/3,719.31
6. Step 6: Final answer
   x = 4,836.91