Finding the Fourth Proportional to 1,559.71, 2,152.31 and 896.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.71 : 2,152.31 = 896.50 : x
2. Step 2: Convert to fraction form
   1,559.71/2,152.31 = 896.50/x
3. Step 3: Cross multiply
   1,559.71x = 2,152.31 × 896.50
4. Step 4: Simplify right side
   1,559.71x = 1,929,545.92
5. Step 5: Solve for x
   x = 1,929,545.92/1,559.71
6. Step 6: Final answer
   x = 1,237.12