Finding the Fourth Proportional to 1,607.52, 2,218.32 and 908.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607.52 : 2,218.32 = 908.96 : x
2. Step 2: Convert to fraction form
   1,607.52/2,218.32 = 908.96/x
3. Step 3: Cross multiply
   1,607.52x = 2,218.32 × 908.96
4. Step 4: Simplify right side
   1,607.52x = 2,016,364.15
5. Step 5: Solve for x
   x = 2,016,364.15/1,607.52
6. Step 6: Final answer
   x = 1,254.33