Finding the Fourth Proportional to 1,047.54, 1,571.06 and 462.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.54 : 1,571.06 = 462.72 : x
2. Step 2: Convert to fraction form
   1,047.54/1,571.06 = 462.72/x
3. Step 3: Cross multiply
   1,047.54x = 1,571.06 × 462.72
4. Step 4: Simplify right side
   1,047.54x = 726,960.88
5. Step 5: Solve for x
   x = 726,960.88/1,047.54
6. Step 6: Final answer
   x = 693.97