Finding the Fourth Proportional to 2,147.34, 3,223.30 and 1,630.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.34 : 3,223.30 = 1,630.68 : x
2. Step 2: Convert to fraction form
   2,147.34/3,223.30 = 1,630.68/x
3. Step 3: Cross multiply
   2,147.34x = 3,223.30 × 1,630.68
4. Step 4: Simplify right side
   2,147.34x = 5,256,170.84
5. Step 5: Solve for x
   x = 5,256,170.84/2,147.34
6. Step 6: Final answer
   x = 2,447.76