Finding the Fourth Proportional to 1,559.48, 2,152.31 and 896.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.48 : 2,152.31 = 896.49 : x
2. Step 2: Convert to fraction form
   1,559.48/2,152.31 = 896.49/x
3. Step 3: Cross multiply
   1,559.48x = 2,152.31 × 896.49
4. Step 4: Simplify right side
   1,559.48x = 1,929,519.91
5. Step 5: Solve for x
   x = 1,929,519.91/1,559.48
6. Step 6: Final answer
   x = 1,237.29