Finding the Fourth Proportional to 1,559.64, 2,151.72 and 896.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.64 : 2,151.72 = 896.16 : x
2. Step 2: Convert to fraction form
   1,559.64/2,151.72 = 896.16/x
3. Step 3: Cross multiply
   1,559.64x = 2,151.72 × 896.16
4. Step 4: Simplify right side
   1,559.64x = 1,928,285.40
5. Step 5: Solve for x
   x = 1,928,285.40/1,559.64
6. Step 6: Final answer
   x = 1,236.37