Finding the Fourth Proportional to 2,074.38, 3,112.49 and 1,100.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.38 : 3,112.49 = 1,100.25 : x
2. Step 2: Convert to fraction form
   2,074.38/3,112.49 = 1,100.25/x
3. Step 3: Cross multiply
   2,074.38x = 3,112.49 × 1,100.25
4. Step 4: Simplify right side
   2,074.38x = 3,424,519.87
5. Step 5: Solve for x
   x = 3,424,519.87/2,074.38
6. Step 6: Final answer
   x = 1,650.87