Finding the Fourth Proportional to 1,993.10, 2,750.73 and 1,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.10 : 2,750.73 = 1,109.30 : x
2. Step 2: Convert to fraction form
   1,993.10/2,750.73 = 1,109.30/x
3. Step 3: Cross multiply
   1,993.10x = 2,750.73 × 1,109.30
4. Step 4: Simplify right side
   1,993.10x = 3,051,384.79
5. Step 5: Solve for x
   x = 3,051,384.79/1,993.10
6. Step 6: Final answer
   x = 1,530.97