Finding the Fourth Proportional to 1,443.89, 2,167.21 and 897.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.89 : 2,167.21 = 897.14 : x
2. Step 2: Convert to fraction form
   1,443.89/2,167.21 = 897.14/x
3. Step 3: Cross multiply
   1,443.89x = 2,167.21 × 897.14
4. Step 4: Simplify right side
   1,443.89x = 1,944,290.78
5. Step 5: Solve for x
   x = 1,944,290.78/1,443.89
6. Step 6: Final answer
   x = 1,346.56