Finding the Fourth Proportional to 2,688.80, 4,031.83 and 1,302.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.80 : 4,031.83 = 1,302.33 : x
2. Step 2: Convert to fraction form
   2,688.80/4,031.83 = 1,302.33/x
3. Step 3: Cross multiply
   2,688.80x = 4,031.83 × 1,302.33
4. Step 4: Simplify right side
   2,688.80x = 5,250,759.91
5. Step 5: Solve for x
   x = 5,250,759.91/2,688.80
6. Step 6: Final answer
   x = 1,952.83