Finding the Fourth Proportional to 3,239.72, 4,858.56 and 1,047.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,239.72 : 4,858.56 = 1,047.94 : x
2. Step 2: Convert to fraction form
   3,239.72/4,858.56 = 1,047.94/x
3. Step 3: Cross multiply
   3,239.72x = 4,858.56 × 1,047.94
4. Step 4: Simplify right side
   3,239.72x = 5,091,464.27
5. Step 5: Solve for x
   x = 5,091,464.27/3,239.72
6. Step 6: Final answer
   x = 1,571.57