Finding the Fourth Proportional to 2,072.97, 3,109.86 and 1,100.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.97 : 3,109.86 = 1,100.16 : x
2. Step 2: Convert to fraction form
   2,072.97/3,109.86 = 1,100.16/x
3. Step 3: Cross multiply
   2,072.97x = 3,109.86 × 1,100.16
4. Step 4: Simplify right side
   2,072.97x = 3,421,343.58
5. Step 5: Solve for x
   x = 3,421,343.58/2,072.97
6. Step 6: Final answer
   x = 1,650.45