Finding the Fourth Proportional to 2,205.33, 3,043.37 and 1,210.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.33 : 3,043.37 = 1,210.65 : x
2. Step 2: Convert to fraction form
   2,205.33/3,043.37 = 1,210.65/x
3. Step 3: Cross multiply
   2,205.33x = 3,043.37 × 1,210.65
4. Step 4: Simplify right side
   2,205.33x = 3,684,447.50
5. Step 5: Solve for x
   x = 3,684,447.50/2,205.33
6. Step 6: Final answer
   x = 1,670.70