Finding the Fourth Proportional to 1,229.30, 1,697.24 and 897.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229.30 : 1,697.24 = 897.14 : x
2. Step 2: Convert to fraction form
   1,229.30/1,697.24 = 897.14/x
3. Step 3: Cross multiply
   1,229.30x = 1,697.24 × 897.14
4. Step 4: Simplify right side
   1,229.30x = 1,522,661.89
5. Step 5: Solve for x
   x = 1,522,661.89/1,229.30
6. Step 6: Final answer
   x = 1,238.64