Finding the Fourth Proportional to 1,559.12, 2,151.71 and 896.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.12 : 2,151.71 = 896.18 : x
2. Step 2: Convert to fraction form
   1,559.12/2,151.71 = 896.18/x
3. Step 3: Cross multiply
   1,559.12x = 2,151.71 × 896.18
4. Step 4: Simplify right side
   1,559.12x = 1,928,317.17
5. Step 5: Solve for x
   x = 1,928,317.17/1,559.12
6. Step 6: Final answer
   x = 1,236.80