Finding the Fourth Proportional to 3,719.16, 5,578.70 and 908.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.16 : 5,578.70 = 908.02 : x
2. Step 2: Convert to fraction form
   3,719.16/5,578.70 = 908.02/x
3. Step 3: Cross multiply
   3,719.16x = 5,578.70 × 908.02
4. Step 4: Simplify right side
   3,719.16x = 5,065,571.17
5. Step 5: Solve for x
   x = 5,065,571.17/3,719.16
6. Step 6: Final answer
   x = 1,362.02