Finding the Fourth Proportional to 1,644.22, 2,269.53 and 946.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.22 : 2,269.53 = 946.06 : x
2. Step 2: Convert to fraction form
   1,644.22/2,269.53 = 946.06/x
3. Step 3: Cross multiply
   1,644.22x = 2,269.53 × 946.06
4. Step 4: Simplify right side
   1,644.22x = 2,147,111.55
5. Step 5: Solve for x
   x = 2,147,111.55/1,644.22
6. Step 6: Final answer
   x = 1,305.85