Finding the Fourth Proportional to 3,483.88, 5,223.13 and 1,142.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,483.88 : 5,223.13 = 1,142.47 : x
2. Step 2: Convert to fraction form
   3,483.88/5,223.13 = 1,142.47/x
3. Step 3: Cross multiply
   3,483.88x = 5,223.13 × 1,142.47
4. Step 4: Simplify right side
   3,483.88x = 5,967,269.33
5. Step 5: Solve for x
   x = 5,967,269.33/3,483.88
6. Step 6: Final answer
   x = 1,712.82