Finding the Fourth Proportional to 2,579.41, 3,868.20 and 935.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.41 : 3,868.20 = 935.53 : x
2. Step 2: Convert to fraction form
   2,579.41/3,868.20 = 935.53/x
3. Step 3: Cross multiply
   2,579.41x = 3,868.20 × 935.53
4. Step 4: Simplify right side
   2,579.41x = 3,618,817.15
5. Step 5: Solve for x
   x = 3,618,817.15/2,579.41
6. Step 6: Final answer
   x = 1,402.96