Finding the Fourth Proportional to 5,488.23, 8,231.34 and 1,485.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,488.23 : 8,231.34 = 1,485.69 : x
2. Step 2: Convert to fraction form
   5,488.23/8,231.34 = 1,485.69/x
3. Step 3: Cross multiply
   5,488.23x = 8,231.34 × 1,485.69
4. Step 4: Simplify right side
   5,488.23x = 12,229,219.52
5. Step 5: Solve for x
   x = 12,229,219.52/5,488.23
6. Step 6: Final answer
   x = 2,228.26