Finding the Fourth Proportional to 2,389.23, 3,294.68 and 1,644.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.23 : 3,294.68 = 1,644.30 : x
2. Step 2: Convert to fraction form
   2,389.23/3,294.68 = 1,644.30/x
3. Step 3: Cross multiply
   2,389.23x = 3,294.68 × 1,644.30
4. Step 4: Simplify right side
   2,389.23x = 5,417,434.10
5. Step 5: Solve for x
   x = 5,417,434.10/2,389.23
6. Step 6: Final answer
   x = 2,267.44