Finding the Fourth Proportional to 2,764.50, 4,143.42 and 1,300.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.50 : 4,143.42 = 1,300.80 : x
2. Step 2: Convert to fraction form
   2,764.50/4,143.42 = 1,300.80/x
3. Step 3: Cross multiply
   2,764.50x = 4,143.42 × 1,300.80
4. Step 4: Simplify right side
   2,764.50x = 5,389,760.74
5. Step 5: Solve for x
   x = 5,389,760.74/2,764.50
6. Step 6: Final answer
   x = 1,949.63