Finding the Fourth Proportional to 1,774.16, 2,662.68 and 908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.16 : 2,662.68 = 908.72 : x
2. Step 2: Convert to fraction form
   1,774.16/2,662.68 = 908.72/x
3. Step 3: Cross multiply
   1,774.16x = 2,662.68 × 908.72
4. Step 4: Simplify right side
   1,774.16x = 2,419,630.57
5. Step 5: Solve for x
   x = 2,419,630.57/1,774.16
6. Step 6: Final answer
   x = 1,363.82