Finding the Fourth Proportional to 2,625.67, 3,936.38 and 981.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.67 : 3,936.38 = 981.98 : x
2. Step 2: Convert to fraction form
   2,625.67/3,936.38 = 981.98/x
3. Step 3: Cross multiply
   2,625.67x = 3,936.38 × 981.98
4. Step 4: Simplify right side
   2,625.67x = 3,865,446.43
5. Step 5: Solve for x
   x = 3,865,446.43/2,625.67
6. Step 6: Final answer
   x = 1,472.18