Finding the Fourth Proportional to 1,162.34, 1,744.47 and 478.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.34 : 1,744.47 = 478.82 : x
2. Step 2: Convert to fraction form
   1,162.34/1,744.47 = 478.82/x
3. Step 3: Cross multiply
   1,162.34x = 1,744.47 × 478.82
4. Step 4: Simplify right side
   1,162.34x = 835,287.13
5. Step 5: Solve for x
   x = 835,287.13/1,162.34
6. Step 6: Final answer
   x = 718.63