Finding the Fourth Proportional to 1,338.55, 1,846.90 and 749.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.55 : 1,846.90 = 749.07 : x
2. Step 2: Convert to fraction form
   1,338.55/1,846.90 = 749.07/x
3. Step 3: Cross multiply
   1,338.55x = 1,846.90 × 749.07
4. Step 4: Simplify right side
   1,338.55x = 1,383,457.38
5. Step 5: Solve for x
   x = 1,383,457.38/1,338.55
6. Step 6: Final answer
   x = 1,033.55