Finding the Fourth Proportional to 2,205.75, 3,043.82 and 1,210.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.75 : 3,043.82 = 1,210.96 : x
2. Step 2: Convert to fraction form
   2,205.75/3,043.82 = 1,210.96/x
3. Step 3: Cross multiply
   2,205.75x = 3,043.82 × 1,210.96
4. Step 4: Simplify right side
   2,205.75x = 3,685,927.17
5. Step 5: Solve for x
   x = 3,685,927.17/2,205.75
6. Step 6: Final answer
   x = 1,671.05