Finding the Fourth Proportional to 1,322.72, 1,825.44 and 908

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.72 : 1,825.44 = 908 : x
2. Step 2: Convert to fraction form
   1,322.72/1,825.44 = 908/x
3. Step 3: Cross multiply
   1,322.72x = 1,825.44 × 908
4. Step 4: Simplify right side
   1,322.72x = 1,657,499.52
5. Step 5: Solve for x
   x = 1,657,499.52/1,322.72
6. Step 6: Final answer
   x = 1,253.10