Finding the Fourth Proportional to 2,746.08, 3,786.48 and 1,998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,746.08 : 3,786.48 = 1,998.72 : x
2. Step 2: Convert to fraction form
   2,746.08/3,786.48 = 1,998.72/x
3. Step 3: Cross multiply
   2,746.08x = 3,786.48 × 1,998.72
4. Step 4: Simplify right side
   2,746.08x = 7,568,113.31
5. Step 5: Solve for x
   x = 7,568,113.31/2,746.08
6. Step 6: Final answer
   x = 2,755.97