Finding the Fourth Proportional to 2,479.35, 3,719.07 and 998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.35 : 3,719.07 = 998.72 : x
2. Step 2: Convert to fraction form
   2,479.35/3,719.07 = 998.72/x
3. Step 3: Cross multiply
   2,479.35x = 3,719.07 × 998.72
4. Step 4: Simplify right side
   2,479.35x = 3,714,291.00
5. Step 5: Solve for x
   x = 3,714,291.00/2,479.35
6. Step 6: Final answer
   x = 1,498.09