Finding the Fourth Proportional to 1,452.02, 2,175.30 and 1,222.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.02 : 2,175.30 = 1,222.40 : x
2. Step 2: Convert to fraction form
   1,452.02/2,175.30 = 1,222.40/x
3. Step 3: Cross multiply
   1,452.02x = 2,175.30 × 1,222.40
4. Step 4: Simplify right side
   1,452.02x = 2,659,086.72
5. Step 5: Solve for x
   x = 2,659,086.72/1,452.02
6. Step 6: Final answer
   x = 1,831.30