Finding the Fourth Proportional to 3,512.72, 5,269.94 and 1,047.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,512.72 : 5,269.94 = 1,047.53 : x
2. Step 2: Convert to fraction form
   3,512.72/5,269.94 = 1,047.53/x
3. Step 3: Cross multiply
   3,512.72x = 5,269.94 × 1,047.53
4. Step 4: Simplify right side
   3,512.72x = 5,520,436.04
5. Step 5: Solve for x
   x = 5,520,436.04/3,512.72
6. Step 6: Final answer
   x = 1,571.55