Finding the Fourth Proportional to 1,338.62, 1,847.36 and 749.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.62 : 1,847.36 = 749.21 : x
2. Step 2: Convert to fraction form
   1,338.62/1,847.36 = 749.21/x
3. Step 3: Cross multiply
   1,338.62x = 1,847.36 × 749.21
4. Step 4: Simplify right side
   1,338.62x = 1,384,053.22
5. Step 5: Solve for x
   x = 1,384,053.22/1,338.62
6. Step 6: Final answer
   x = 1,033.94