Finding the Fourth Proportional to 2,658.18, 3,984.69 and 1,488.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.18 : 3,984.69 = 1,488.75 : x
2. Step 2: Convert to fraction form
   2,658.18/3,984.69 = 1,488.75/x
3. Step 3: Cross multiply
   2,658.18x = 3,984.69 × 1,488.75
4. Step 4: Simplify right side
   2,658.18x = 5,932,187.31
5. Step 5: Solve for x
   x = 5,932,187.31/2,658.18
6. Step 6: Final answer
   x = 2,231.68