Finding the Fourth Proportional to 1,300.34, 1,949.39 and 478.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.34 : 1,949.39 = 478.46 : x
2. Step 2: Convert to fraction form
   1,300.34/1,949.39 = 478.46/x
3. Step 3: Cross multiply
   1,300.34x = 1,949.39 × 478.46
4. Step 4: Simplify right side
   1,300.34x = 932,693.00
5. Step 5: Solve for x
   x = 932,693.00/1,300.34
6. Step 6: Final answer
   x = 717.27