Finding the Fourth Proportional to 1,984.39, 2,738.46 and 1,100.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.39 : 2,738.46 = 1,100.21 : x
2. Step 2: Convert to fraction form
   1,984.39/2,738.46 = 1,100.21/x
3. Step 3: Cross multiply
   1,984.39x = 2,738.46 × 1,100.21
4. Step 4: Simplify right side
   1,984.39x = 3,012,867.38
5. Step 5: Solve for x
   x = 3,012,867.38/1,984.39
6. Step 6: Final answer
   x = 1,518.29