Finding the Fourth Proportional to 1,262.69, 1,742.33 and 738.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262.69 : 1,742.33 = 738.89 : x
2. Step 2: Convert to fraction form
   1,262.69/1,742.33 = 738.89/x
3. Step 3: Cross multiply
   1,262.69x = 1,742.33 × 738.89
4. Step 4: Simplify right side
   1,262.69x = 1,287,377.81
5. Step 5: Solve for x
   x = 1,287,377.81/1,262.69
6. Step 6: Final answer
   x = 1,019.56