Finding the Fourth Proportional to 6,443.59, 9,665.29 and 1,826.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.59 : 9,665.29 = 1,826.59 : x
2. Step 2: Convert to fraction form
   6,443.59/9,665.29 = 1,826.59/x
3. Step 3: Cross multiply
   6,443.59x = 9,665.29 × 1,826.59
4. Step 4: Simplify right side
   6,443.59x = 17,654,522.06
5. Step 5: Solve for x
   x = 17,654,522.06/6,443.59
6. Step 6: Final answer
   x = 2,739.86