Finding the Fourth Proportional to 2,141.30, 3,212.24 and 908.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.30 : 3,212.24 = 908.53 : x
2. Step 2: Convert to fraction form
   2,141.30/3,212.24 = 908.53/x
3. Step 3: Cross multiply
   2,141.30x = 3,212.24 × 908.53
4. Step 4: Simplify right side
   2,141.30x = 2,918,403.83
5. Step 5: Solve for x
   x = 2,918,403.83/2,141.30
6. Step 6: Final answer
   x = 1,362.91