Finding the Fourth Proportional to 2,003.86, 3,003.20 and 1,479.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.86 : 3,003.20 = 1,479.68 : x
2. Step 2: Convert to fraction form
   2,003.86/3,003.20 = 1,479.68/x
3. Step 3: Cross multiply
   2,003.86x = 3,003.20 × 1,479.68
4. Step 4: Simplify right side
   2,003.86x = 4,443,782.65
5. Step 5: Solve for x
   x = 4,443,782.65/2,003.86
6. Step 6: Final answer
   x = 2,217.61