Finding the Fourth Proportional to 2,630.72, 3,945.68 and 1,049.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.72 : 3,945.68 = 1,049.34 : x
2. Step 2: Convert to fraction form
   2,630.72/3,945.68 = 1,049.34/x
3. Step 3: Cross multiply
   2,630.72x = 3,945.68 × 1,049.34
4. Step 4: Simplify right side
   2,630.72x = 4,140,359.85
5. Step 5: Solve for x
   x = 4,140,359.85/2,630.72
6. Step 6: Final answer
   x = 1,573.85