Finding the Fourth Proportional to 1,047.27, 1,571.16 and 739.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.27 : 1,571.16 = 739.72 : x
2. Step 2: Convert to fraction form
   1,047.27/1,571.16 = 739.72/x
3. Step 3: Cross multiply
   1,047.27x = 1,571.16 × 739.72
4. Step 4: Simplify right side
   1,047.27x = 1,162,214.78
5. Step 5: Solve for x
   x = 1,162,214.78/1,047.27
6. Step 6: Final answer
   x = 1,109.76