Finding the Fourth Proportional to 1,456.29, 2,181.06 and 723.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.29 : 2,181.06 = 723.51 : x
2. Step 2: Convert to fraction form
   1,456.29/2,181.06 = 723.51/x
3. Step 3: Cross multiply
   1,456.29x = 2,181.06 × 723.51
4. Step 4: Simplify right side
   1,456.29x = 1,578,018.72
5. Step 5: Solve for x
   x = 1,578,018.72/1,456.29
6. Step 6: Final answer
   x = 1,083.59