Finding the Fourth Proportional to 1,300.95, 1,951.16 and 479.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.95 : 1,951.16 = 479.25 : x
2. Step 2: Convert to fraction form
   1,300.95/1,951.16 = 479.25/x
3. Step 3: Cross multiply
   1,300.95x = 1,951.16 × 479.25
4. Step 4: Simplify right side
   1,300.95x = 935,091.03
5. Step 5: Solve for x
   x = 935,091.03/1,300.95
6. Step 6: Final answer
   x = 718.78