Finding the Fourth Proportional to 1,300.42, 1,951.40 and 479.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.42 : 1,951.40 = 479.27 : x
2. Step 2: Convert to fraction form
   1,300.42/1,951.40 = 479.27/x
3. Step 3: Cross multiply
   1,300.42x = 1,951.40 × 479.27
4. Step 4: Simplify right side
   1,300.42x = 935,251.12
5. Step 5: Solve for x
   x = 935,251.12/1,300.42
6. Step 6: Final answer
   x = 719.19