Finding the Fourth Proportional to 1,993.35, 2,750.70 and 1,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.35 : 2,750.70 = 1,109.10 : x
2. Step 2: Convert to fraction form
   1,993.35/2,750.70 = 1,109.10/x
3. Step 3: Cross multiply
   1,993.35x = 2,750.70 × 1,109.10
4. Step 4: Simplify right side
   1,993.35x = 3,050,801.37
5. Step 5: Solve for x
   x = 3,050,801.37/1,993.35
6. Step 6: Final answer
   x = 1,530.49