Finding the Fourth Proportional to 1,644.56, 2,269.39 and 898.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.56 : 2,269.39 = 898.37 : x
2. Step 2: Convert to fraction form
   1,644.56/2,269.39 = 898.37/x
3. Step 3: Cross multiply
   1,644.56x = 2,269.39 × 898.37
4. Step 4: Simplify right side
   1,644.56x = 2,038,747.40
5. Step 5: Solve for x
   x = 2,038,747.40/1,644.56
6. Step 6: Final answer
   x = 1,239.69