Finding the Fourth Proportional to 3,363.48, 5,045.31 and 1,142.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,363.48 : 5,045.31 = 1,142.28 : x
2. Step 2: Convert to fraction form
   3,363.48/5,045.31 = 1,142.28/x
3. Step 3: Cross multiply
   3,363.48x = 5,045.31 × 1,142.28
4. Step 4: Simplify right side
   3,363.48x = 5,763,156.71
5. Step 5: Solve for x
   x = 5,763,156.71/3,363.48
6. Step 6: Final answer
   x = 1,713.45