Finding the Fourth Proportional to 2,586.48, 3,873.72 and 1,488.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.48 : 3,873.72 = 1,488.12 : x
2. Step 2: Convert to fraction form
   2,586.48/3,873.72 = 1,488.12/x
3. Step 3: Cross multiply
   2,586.48x = 3,873.72 × 1,488.12
4. Step 4: Simplify right side
   2,586.48x = 5,764,560.21
5. Step 5: Solve for x
   x = 5,764,560.21/2,586.48
6. Step 6: Final answer
   x = 2,228.73