Finding the Fourth Proportional to 1,993.96, 2,751.78 and 1,109.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.96 : 2,751.78 = 1,109.76 : x
2. Step 2: Convert to fraction form
   1,993.96/2,751.78 = 1,109.76/x
3. Step 3: Cross multiply
   1,993.96x = 2,751.78 × 1,109.76
4. Step 4: Simplify right side
   1,993.96x = 3,053,815.37
5. Step 5: Solve for x
   x = 3,053,815.37/1,993.96
6. Step 6: Final answer
   x = 1,531.53