Finding the Fourth Proportional to 2,035.72, 3,053.80 and 648.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,035.72 : 3,053.80 = 648.73 : x
2. Step 2: Convert to fraction form
   2,035.72/3,053.80 = 648.73/x
3. Step 3: Cross multiply
   2,035.72x = 3,053.80 × 648.73
4. Step 4: Simplify right side
   2,035.72x = 1,981,091.67
5. Step 5: Solve for x
   x = 1,981,091.67/2,035.72
6. Step 6: Final answer
   x = 973.17