Finding the Fourth Proportional to 3,238.76, 4,857.12 and 1,047

Step by Step Solution

1. Step 1: Write the proportion equation
   3,238.76 : 4,857.12 = 1,047 : x
2. Step 2: Convert to fraction form
   3,238.76/4,857.12 = 1,047/x
3. Step 3: Cross multiply
   3,238.76x = 4,857.12 × 1,047
4. Step 4: Simplify right side
   3,238.76x = 5,085,404.64
5. Step 5: Solve for x
   x = 5,085,404.64/3,238.76
6. Step 6: Final answer
   x = 1,570.17