Finding the Fourth Proportional to 1,454.66, 2,007.72 and 1,143.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.66 : 2,007.72 = 1,143.62 : x
2. Step 2: Convert to fraction form
   1,454.66/2,007.72 = 1,143.62/x
3. Step 3: Cross multiply
   1,454.66x = 2,007.72 × 1,143.62
4. Step 4: Simplify right side
   1,454.66x = 2,296,068.75
5. Step 5: Solve for x
   x = 2,296,068.75/1,454.66
6. Step 6: Final answer
   x = 1,578.42