Finding the Fourth Proportional to 849.79, 1,268.94 and 744.89

Step by Step Solution

1. Step 1: Write the proportion equation
   849.79 : 1,268.94 = 744.89 : x
2. Step 2: Convert to fraction form
   849.79/1,268.94 = 744.89/x
3. Step 3: Cross multiply
   849.79x = 1,268.94 × 744.89
4. Step 4: Simplify right side
   849.79x = 945,223.89
5. Step 5: Solve for x
   x = 945,223.89/849.79
6. Step 6: Final answer
   x = 1,112.31