Finding the Fourth Proportional to 3,483.48, 5,223.28 and 1,142.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,483.48 : 5,223.28 = 1,142.86 : x
2. Step 2: Convert to fraction form
   3,483.48/5,223.28 = 1,142.86/x
3. Step 3: Cross multiply
   3,483.48x = 5,223.28 × 1,142.86
4. Step 4: Simplify right side
   3,483.48x = 5,969,473.80
5. Step 5: Solve for x
   x = 5,969,473.80/3,483.48
6. Step 6: Final answer
   x = 1,713.65