Finding the Fourth Proportional to 1,427.44, 1,969.31 and 896.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.44 : 1,969.31 = 896.10 : x
2. Step 2: Convert to fraction form
   1,427.44/1,969.31 = 896.10/x
3. Step 3: Cross multiply
   1,427.44x = 1,969.31 × 896.10
4. Step 4: Simplify right side
   1,427.44x = 1,764,693.55
5. Step 5: Solve for x
   x = 1,764,693.55/1,427.44
6. Step 6: Final answer
   x = 1,236.27