Finding the Fourth Proportional to 2,605.89, 3,596.16 and 1,426.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.89 : 3,596.16 = 1,426.99 : x
2. Step 2: Convert to fraction form
   2,605.89/3,596.16 = 1,426.99/x
3. Step 3: Cross multiply
   2,605.89x = 3,596.16 × 1,426.99
4. Step 4: Simplify right side
   2,605.89x = 5,131,684.36
5. Step 5: Solve for x
   x = 5,131,684.36/2,605.89
6. Step 6: Final answer
   x = 1,969.26