Finding the Fourth Proportional to 2,605.72, 3,595.89 and 1,426.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.72 : 3,595.89 = 1,426.79 : x
2. Step 2: Convert to fraction form
   2,605.72/3,595.89 = 1,426.79/x
3. Step 3: Cross multiply
   2,605.72x = 3,595.89 × 1,426.79
4. Step 4: Simplify right side
   2,605.72x = 5,130,579.89
5. Step 5: Solve for x
   x = 5,130,579.89/2,605.72
6. Step 6: Final answer
   x = 1,968.97