Finding the Fourth Proportional to 2,576.98, 3,863.85 and 933.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.98 : 3,863.85 = 933.49 : x
2. Step 2: Convert to fraction form
   2,576.98/3,863.85 = 933.49/x
3. Step 3: Cross multiply
   2,576.98x = 3,863.85 × 933.49
4. Step 4: Simplify right side
   2,576.98x = 3,606,865.34
5. Step 5: Solve for x
   x = 3,606,865.34/2,576.98
6. Step 6: Final answer
   x = 1,399.65