Finding the Fourth Proportional to 1,262.38, 1,742.15 and 738.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262.38 : 1,742.15 = 738.71 : x
2. Step 2: Convert to fraction form
   1,262.38/1,742.15 = 738.71/x
3. Step 3: Cross multiply
   1,262.38x = 1,742.15 × 738.71
4. Step 4: Simplify right side
   1,262.38x = 1,286,939.93
5. Step 5: Solve for x
   x = 1,286,939.93/1,262.38
6. Step 6: Final answer
   x = 1,019.46