Finding the Fourth Proportional to 1,046.72, 1,562.96 and 936.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.72 : 1,562.96 = 936.32 : x
2. Step 2: Convert to fraction form
   1,046.72/1,562.96 = 936.32/x
3. Step 3: Cross multiply
   1,046.72x = 1,562.96 × 936.32
4. Step 4: Simplify right side
   1,046.72x = 1,463,430.71
5. Step 5: Solve for x
   x = 1,463,430.71/1,046.72
6. Step 6: Final answer
   x = 1,398.11