Finding the Fourth Proportional to 2,131.46, 3,197.32 and 897.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.46 : 3,197.32 = 897.64 : x
2. Step 2: Convert to fraction form
   2,131.46/3,197.32 = 897.64/x
3. Step 3: Cross multiply
   2,131.46x = 3,197.32 × 897.64
4. Step 4: Simplify right side
   2,131.46x = 2,870,042.32
5. Step 5: Solve for x
   x = 2,870,042.32/2,131.46
6. Step 6: Final answer
   x = 1,346.51