Finding the Fourth Proportional to 1,452.30, 2,175.41 and 1,142.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.30 : 2,175.41 = 1,142.69 : x
2. Step 2: Convert to fraction form
   1,452.30/2,175.41 = 1,142.69/x
3. Step 3: Cross multiply
   1,452.30x = 2,175.41 × 1,142.69
4. Step 4: Simplify right side
   1,452.30x = 2,485,802.66
5. Step 5: Solve for x
   x = 2,485,802.66/1,452.30
6. Step 6: Final answer
   x = 1,711.63