Finding the Fourth Proportional to 2,335.49, 3,223.00 and 1,287.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.49 : 3,223.00 = 1,287.59 : x
2. Step 2: Convert to fraction form
   2,335.49/3,223.00 = 1,287.59/x
3. Step 3: Cross multiply
   2,335.49x = 3,223.00 × 1,287.59
4. Step 4: Simplify right side
   2,335.49x = 4,149,913.85
5. Step 5: Solve for x
   x = 4,149,913.85/2,335.49
6. Step 6: Final answer
   x = 1,776.89