Finding the Fourth Proportional to 2,976.32, 4,459.62 and 2,862.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.32 : 4,459.62 = 2,862.56 : x
2. Step 2: Convert to fraction form
   2,976.32/4,459.62 = 2,862.56/x
3. Step 3: Cross multiply
   2,976.32x = 4,459.62 × 2,862.56
4. Step 4: Simplify right side
   2,976.32x = 12,765,929.83
5. Step 5: Solve for x
   x = 12,765,929.83/2,976.32
6. Step 6: Final answer
   x = 4,289.17