Finding the Fourth Proportional to 2,758.38, 4,136.37 and 1,002.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.38 : 4,136.37 = 1,002.80 : x
2. Step 2: Convert to fraction form
   2,758.38/4,136.37 = 1,002.80/x
3. Step 3: Cross multiply
   2,758.38x = 4,136.37 × 1,002.80
4. Step 4: Simplify right side
   2,758.38x = 4,147,931.15
5. Step 5: Solve for x
   x = 4,147,931.15/2,758.38
6. Step 6: Final answer
   x = 1,503.76