Finding the Fourth Proportional to 1,559.72, 2,152.17 and 896.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.72 : 2,152.17 = 896.67 : x
2. Step 2: Convert to fraction form
   1,559.72/2,152.17 = 896.67/x
3. Step 3: Cross multiply
   1,559.72x = 2,152.17 × 896.67
4. Step 4: Simplify right side
   1,559.72x = 1,929,786.27
5. Step 5: Solve for x
   x = 1,929,786.27/1,559.72
6. Step 6: Final answer
   x = 1,237.26