Finding the Fourth Proportional to 2,605.81, 3,596.06 and 1,426.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.81 : 3,596.06 = 1,426.86 : x
2. Step 2: Convert to fraction form
   2,605.81/3,596.06 = 1,426.86/x
3. Step 3: Cross multiply
   2,605.81x = 3,596.06 × 1,426.86
4. Step 4: Simplify right side
   2,605.81x = 5,131,074.17
5. Step 5: Solve for x
   x = 5,131,074.17/2,605.81
6. Step 6: Final answer
   x = 1,969.09