Finding the Fourth Proportional to 2,605.76, 3,596 and 1,426.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.76 : 3,596 = 1,426.88 : x
2. Step 2: Convert to fraction form
   2,605.76/3,596 = 1,426.88/x
3. Step 3: Cross multiply
   2,605.76x = 3,596 × 1,426.88
4. Step 4: Simplify right side
   2,605.76x = 5,131,060.48
5. Step 5: Solve for x
   x = 5,131,060.48/2,605.76
6. Step 6: Final answer
   x = 1,969.12