Finding the Fourth Proportional to 1,650.96, 2,278.37 and 904.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,650.96 : 2,278.37 = 904.96 : x
2. Step 2: Convert to fraction form
   1,650.96/2,278.37 = 904.96/x
3. Step 3: Cross multiply
   1,650.96x = 2,278.37 × 904.96
4. Step 4: Simplify right side
   1,650.96x = 2,061,833.72
5. Step 5: Solve for x
   x = 2,061,833.72/1,650.96
6. Step 6: Final answer
   x = 1,248.87