Finding the Fourth Proportional to 2,828.17, 4,241.89 and 748.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,828.17 : 4,241.89 = 748.35 : x
2. Step 2: Convert to fraction form
   2,828.17/4,241.89 = 748.35/x
3. Step 3: Cross multiply
   2,828.17x = 4,241.89 × 748.35
4. Step 4: Simplify right side
   2,828.17x = 3,174,418.38
5. Step 5: Solve for x
   x = 3,174,418.38/2,828.17
6. Step 6: Final answer
   x = 1,122.43