Finding the Fourth Proportional to 2,605.81, 3,596.01 and 1,426.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.81 : 3,596.01 = 1,426.87 : x
2. Step 2: Convert to fraction form
   2,605.81/3,596.01 = 1,426.87/x
3. Step 3: Cross multiply
   2,605.81x = 3,596.01 × 1,426.87
4. Step 4: Simplify right side
   2,605.81x = 5,131,038.79
5. Step 5: Solve for x
   x = 5,131,038.79/2,605.81
6. Step 6: Final answer
   x = 1,969.08