Finding the Fourth Proportional to 2,205.89, 3,043.85 and 1,261.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.89 : 3,043.85 = 1,261.59 : x
2. Step 2: Convert to fraction form
   2,205.89/3,043.85 = 1,261.59/x
3. Step 3: Cross multiply
   2,205.89x = 3,043.85 × 1,261.59
4. Step 4: Simplify right side
   2,205.89x = 3,840,090.72
5. Step 5: Solve for x
   x = 3,840,090.72/2,205.89
6. Step 6: Final answer
   x = 1,740.84