Finding the Fourth Proportional to 2,658.04, 3,986.94 and 1,015.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.04 : 3,986.94 = 1,015.36 : x
2. Step 2: Convert to fraction form
   2,658.04/3,986.94 = 1,015.36/x
3. Step 3: Cross multiply
   2,658.04x = 3,986.94 × 1,015.36
4. Step 4: Simplify right side
   2,658.04x = 4,048,179.40
5. Step 5: Solve for x
   x = 4,048,179.40/2,658.04
6. Step 6: Final answer
   x = 1,522.99