Finding the Fourth Proportional to 2,100.52, 3,147 and 1,222.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.52 : 3,147 = 1,222.48 : x
2. Step 2: Convert to fraction form
   2,100.52/3,147 = 1,222.48/x
3. Step 3: Cross multiply
   2,100.52x = 3,147 × 1,222.48
4. Step 4: Simplify right side
   2,100.52x = 3,847,144.56
5. Step 5: Solve for x
   x = 3,847,144.56/2,100.52
6. Step 6: Final answer
   x = 1,831.52