Finding the Fourth Proportional to 2,044.34, 2,820.57 and 1,205.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,044.34 : 2,820.57 = 1,205.12 : x
2. Step 2: Convert to fraction form
   2,044.34/2,820.57 = 1,205.12/x
3. Step 3: Cross multiply
   2,044.34x = 2,820.57 × 1,205.12
4. Step 4: Simplify right side
   2,044.34x = 3,399,111.22
5. Step 5: Solve for x
   x = 3,399,111.22/2,044.34
6. Step 6: Final answer
   x = 1,662.70