Finding the Fourth Proportional to 1,993.75, 2,751.55 and 1,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.75 : 2,751.55 = 1,109.72 : x
2. Step 2: Convert to fraction form
   1,993.75/2,751.55 = 1,109.72/x
3. Step 3: Cross multiply
   1,993.75x = 2,751.55 × 1,109.72
4. Step 4: Simplify right side
   1,993.75x = 3,053,454.17
5. Step 5: Solve for x
   x = 3,053,454.17/1,993.75
6. Step 6: Final answer
   x = 1,531.51