Finding the Fourth Proportional to 1,301.30, 1,952.71 and 480.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.30 : 1,952.71 = 480.15 : x
2. Step 2: Convert to fraction form
   1,301.30/1,952.71 = 480.15/x
3. Step 3: Cross multiply
   1,301.30x = 1,952.71 × 480.15
4. Step 4: Simplify right side
   1,301.30x = 937,585.14
5. Step 5: Solve for x
   x = 937,585.14/1,301.30
6. Step 6: Final answer
   x = 720.50