Finding the Fourth Proportional to 2,758.02, 4,136.15 and 908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.02 : 4,136.15 = 908.72 : x
2. Step 2: Convert to fraction form
   2,758.02/4,136.15 = 908.72/x
3. Step 3: Cross multiply
   2,758.02x = 4,136.15 × 908.72
4. Step 4: Simplify right side
   2,758.02x = 3,758,602.23
5. Step 5: Solve for x
   x = 3,758,602.23/2,758.02
6. Step 6: Final answer
   x = 1,362.79