Finding the Fourth Proportional to 3,169.62, 4,753.52 and 1,221.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,169.62 : 4,753.52 = 1,221.37 : x
2. Step 2: Convert to fraction form
   3,169.62/4,753.52 = 1,221.37/x
3. Step 3: Cross multiply
   3,169.62x = 4,753.52 × 1,221.37
4. Step 4: Simplify right side
   3,169.62x = 5,805,806.72
5. Step 5: Solve for x
   x = 5,805,806.72/3,169.62
6. Step 6: Final answer
   x = 1,831.70