Finding the Fourth Proportional to 1,992.57, 2,749.74 and 1,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.57 : 2,749.74 = 1,108.50 : x
2. Step 2: Convert to fraction form
   1,992.57/2,749.74 = 1,108.50/x
3. Step 3: Cross multiply
   1,992.57x = 2,749.74 × 1,108.50
4. Step 4: Simplify right side
   1,992.57x = 3,048,086.79
5. Step 5: Solve for x
   x = 3,048,086.79/1,992.57
6. Step 6: Final answer
   x = 1,529.73