Finding the Fourth Proportional to 3,642.80, 5,459.59 and 2,326.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.80 : 5,459.59 = 2,326.15 : x
2. Step 2: Convert to fraction form
   3,642.80/5,459.59 = 2,326.15/x
3. Step 3: Cross multiply
   3,642.80x = 5,459.59 × 2,326.15
4. Step 4: Simplify right side
   3,642.80x = 12,699,813.65
5. Step 5: Solve for x
   x = 12,699,813.65/3,642.80
6. Step 6: Final answer
   x = 3,486.28