Finding the Fourth Proportional to 1,650.72, 2,278.02 and 904.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,650.72 : 2,278.02 = 904.67 : x
2. Step 2: Convert to fraction form
   1,650.72/2,278.02 = 904.67/x
3. Step 3: Cross multiply
   1,650.72x = 2,278.02 × 904.67
4. Step 4: Simplify right side
   1,650.72x = 2,060,856.35
5. Step 5: Solve for x
   x = 2,060,856.35/1,650.72
6. Step 6: Final answer
   x = 1,248.46