Finding the Fourth Proportional to 2,553.82, 3,830.97 and 993.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.82 : 3,830.97 = 993.94 : x
2. Step 2: Convert to fraction form
   2,553.82/3,830.97 = 993.94/x
3. Step 3: Cross multiply
   2,553.82x = 3,830.97 × 993.94
4. Step 4: Simplify right side
   2,553.82x = 3,807,735.17
5. Step 5: Solve for x
   x = 3,807,735.17/2,553.82
6. Step 6: Final answer
   x = 1,491.00