Finding the Fourth Proportional to 2,605.56, 3,595.69 and 1,426.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.56 : 3,595.69 = 1,426.65 : x
2. Step 2: Convert to fraction form
   2,605.56/3,595.69 = 1,426.65/x
3. Step 3: Cross multiply
   2,605.56x = 3,595.69 × 1,426.65
4. Step 4: Simplify right side
   2,605.56x = 5,129,796.56
5. Step 5: Solve for x
   x = 5,129,796.56/2,605.56
6. Step 6: Final answer
   x = 1,968.79