Finding the Fourth Proportional to 1,262.57, 1,742.22 and 738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262.57 : 1,742.22 = 738.50 : x
2. Step 2: Convert to fraction form
   1,262.57/1,742.22 = 738.50/x
3. Step 3: Cross multiply
   1,262.57x = 1,742.22 × 738.50
4. Step 4: Simplify right side
   1,262.57x = 1,286,620.76
5. Step 5: Solve for x
   x = 1,286,620.76/1,262.57
6. Step 6: Final answer
   x = 1,019.05