Finding the Fourth Proportional to 3,223.24, 4,835.46 and 2,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,223.24 : 4,835.46 = 2,128.52 : x
2. Step 2: Convert to fraction form
   3,223.24/4,835.46 = 2,128.52/x
3. Step 3: Cross multiply
   3,223.24x = 4,835.46 × 2,128.52
4. Step 4: Simplify right side
   3,223.24x = 10,292,373.32
5. Step 5: Solve for x
   x = 10,292,373.32/3,223.24
6. Step 6: Final answer
   x = 3,193.18