Finding the Fourth Proportional to 2,459.58, 3,690.44 and 979.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.58 : 3,690.44 = 979.30 : x
2. Step 2: Convert to fraction form
   2,459.58/3,690.44 = 979.30/x
3. Step 3: Cross multiply
   2,459.58x = 3,690.44 × 979.30
4. Step 4: Simplify right side
   2,459.58x = 3,614,047.89
5. Step 5: Solve for x
   x = 3,614,047.89/2,459.58
6. Step 6: Final answer
   x = 1,469.38