Finding the Fourth Proportional to 1,150.19, 1,724.67 and 456.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.19 : 1,724.67 = 456.83 : x
2. Step 2: Convert to fraction form
   1,150.19/1,724.67 = 456.83/x
3. Step 3: Cross multiply
   1,150.19x = 1,724.67 × 456.83
4. Step 4: Simplify right side
   1,150.19x = 787,881.00
5. Step 5: Solve for x
   x = 787,881.00/1,150.19
6. Step 6: Final answer
   x = 685.00