Finding the Fourth Proportional to 6,443.42, 9,665.21 and 1,826.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.42 : 9,665.21 = 1,826.42 : x
2. Step 2: Convert to fraction form
   6,443.42/9,665.21 = 1,826.42/x
3. Step 3: Cross multiply
   6,443.42x = 9,665.21 × 1,826.42
4. Step 4: Simplify right side
   6,443.42x = 17,652,689.09
5. Step 5: Solve for x
   x = 17,652,689.09/6,443.42
6. Step 6: Final answer
   x = 2,739.65