Finding the Fourth Proportional to 1,616.65, 2,230.71 and 908.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.65 : 2,230.71 = 908.46 : x
2. Step 2: Convert to fraction form
   1,616.65/2,230.71 = 908.46/x
3. Step 3: Cross multiply
   1,616.65x = 2,230.71 × 908.46
4. Step 4: Simplify right side
   1,616.65x = 2,026,510.81
5. Step 5: Solve for x
   x = 2,026,510.81/1,616.65
6. Step 6: Final answer
   x = 1,253.52