Finding the Fourth Proportional to 2,498.72, 3,448.28 and 1,379.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.72 : 3,448.28 = 1,379.72 : x
2. Step 2: Convert to fraction form
   2,498.72/3,448.28 = 1,379.72/x
3. Step 3: Cross multiply
   2,498.72x = 3,448.28 × 1,379.72
4. Step 4: Simplify right side
   2,498.72x = 4,757,660.88
5. Step 5: Solve for x
   x = 4,757,660.88/2,498.72
6. Step 6: Final answer
   x = 1,904.04