Finding the Fourth Proportional to 1,993.60, 2,751.12 and 1,109.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.60 : 2,751.12 = 1,109.38 : x
2. Step 2: Convert to fraction form
   1,993.60/2,751.12 = 1,109.38/x
3. Step 3: Cross multiply
   1,993.60x = 2,751.12 × 1,109.38
4. Step 4: Simplify right side
   1,993.60x = 3,052,037.51
5. Step 5: Solve for x
   x = 3,052,037.51/1,993.60
6. Step 6: Final answer
   x = 1,530.92