Finding the Fourth Proportional to 1,644.96, 2,466.72 and 779.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.96 : 2,466.72 = 779.52 : x
2. Step 2: Convert to fraction form
   1,644.96/2,466.72 = 779.52/x
3. Step 3: Cross multiply
   1,644.96x = 2,466.72 × 779.52
4. Step 4: Simplify right side
   1,644.96x = 1,922,857.57
5. Step 5: Solve for x
   x = 1,922,857.57/1,644.96
6. Step 6: Final answer
   x = 1,168.94