Finding the Fourth Proportional to 2,205.38, 3,043.46 and 1,210.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.38 : 3,043.46 = 1,210.75 : x
2. Step 2: Convert to fraction form
   2,205.38/3,043.46 = 1,210.75/x
3. Step 3: Cross multiply
   2,205.38x = 3,043.46 × 1,210.75
4. Step 4: Simplify right side
   2,205.38x = 3,684,870.71
5. Step 5: Solve for x
   x = 3,684,870.71/2,205.38
6. Step 6: Final answer
   x = 1,670.85