Finding the Fourth Proportional to 1,338.57, 1,847.24 and 749.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.57 : 1,847.24 = 749.12 : x
2. Step 2: Convert to fraction form
   1,338.57/1,847.24 = 749.12/x
3. Step 3: Cross multiply
   1,338.57x = 1,847.24 × 749.12
4. Step 4: Simplify right side
   1,338.57x = 1,383,804.43
5. Step 5: Solve for x
   x = 1,383,804.43/1,338.57
6. Step 6: Final answer
   x = 1,033.79