Finding the Fourth Proportional to 1,338.24, 1,846.74 and 748.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.24 : 1,846.74 = 748.80 : x
2. Step 2: Convert to fraction form
   1,338.24/1,846.74 = 748.80/x
3. Step 3: Cross multiply
   1,338.24x = 1,846.74 × 748.80
4. Step 4: Simplify right side
   1,338.24x = 1,382,838.91
5. Step 5: Solve for x
   x = 1,382,838.91/1,338.24
6. Step 6: Final answer
   x = 1,033.33