Finding the Fourth Proportional to 2,578.42, 3,866.41 and 933.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.42 : 3,866.41 = 933.82 : x
2. Step 2: Convert to fraction form
   2,578.42/3,866.41 = 933.82/x
3. Step 3: Cross multiply
   2,578.42x = 3,866.41 × 933.82
4. Step 4: Simplify right side
   2,578.42x = 3,610,530.99
5. Step 5: Solve for x
   x = 3,610,530.99/2,578.42
6. Step 6: Final answer
   x = 1,400.29