Finding the Fourth Proportional to 1,992.76, 2,749.89 and 1,108.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.76 : 2,749.89 = 1,108.39 : x
2. Step 2: Convert to fraction form
   1,992.76/2,749.89 = 1,108.39/x
3. Step 3: Cross multiply
   1,992.76x = 2,749.89 × 1,108.39
4. Step 4: Simplify right side
   1,992.76x = 3,047,936.83
5. Step 5: Solve for x
   x = 3,047,936.83/1,992.76
6. Step 6: Final answer
   x = 1,529.51