Finding the Fourth Proportional to 1,046.43, 1,568.64 and 552.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.43 : 1,568.64 = 552.72 : x
2. Step 2: Convert to fraction form
   1,046.43/1,568.64 = 552.72/x
3. Step 3: Cross multiply
   1,046.43x = 1,568.64 × 552.72
4. Step 4: Simplify right side
   1,046.43x = 867,018.70
5. Step 5: Solve for x
   x = 867,018.70/1,046.43
6. Step 6: Final answer
   x = 828.55