Finding the Fourth Proportional to 1,300.73, 1,949.36 and 478.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.73 : 1,949.36 = 478.24 : x
2. Step 2: Convert to fraction form
   1,300.73/1,949.36 = 478.24/x
3. Step 3: Cross multiply
   1,300.73x = 1,949.36 × 478.24
4. Step 4: Simplify right side
   1,300.73x = 932,254.66
5. Step 5: Solve for x
   x = 932,254.66/1,300.73
6. Step 6: Final answer
   x = 716.72