Finding the Fourth Proportional to 1,451.47, 2,002.24 and 1,253.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.47 : 2,002.24 = 1,253.12 : x
2. Step 2: Convert to fraction form
   1,451.47/2,002.24 = 1,253.12/x
3. Step 3: Cross multiply
   1,451.47x = 2,002.24 × 1,253.12
4. Step 4: Simplify right side
   1,451.47x = 2,509,048.86
5. Step 5: Solve for x
   x = 2,509,048.86/1,451.47
6. Step 6: Final answer
   x = 1,728.63