Finding the Fourth Proportional to 2,625.42, 3,936.00 and 981.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.42 : 3,936.00 = 981.73 : x
2. Step 2: Convert to fraction form
   2,625.42/3,936.00 = 981.73/x
3. Step 3: Cross multiply
   2,625.42x = 3,936.00 × 981.73
4. Step 4: Simplify right side
   2,625.42x = 3,864,083.12
5. Step 5: Solve for x
   x = 3,864,083.12/2,625.42
6. Step 6: Final answer
   x = 1,471.80