Finding the Fourth Proportional to 2,605.33, 3,595.40 and 1,426.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.33 : 3,595.40 = 1,426.40 : x
2. Step 2: Convert to fraction form
   2,605.33/3,595.40 = 1,426.40/x
3. Step 3: Cross multiply
   2,605.33x = 3,595.40 × 1,426.40
4. Step 4: Simplify right side
   2,605.33x = 5,128,491.11
5. Step 5: Solve for x
   x = 5,128,491.11/2,605.33
6. Step 6: Final answer
   x = 1,968.46