Finding the Fourth Proportional to 2,209.63, 3,311.34 and 1,745.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.63 : 3,311.34 = 1,745.38 : x
2. Step 2: Convert to fraction form
   2,209.63/3,311.34 = 1,745.38/x
3. Step 3: Cross multiply
   2,209.63x = 3,311.34 × 1,745.38
4. Step 4: Simplify right side
   2,209.63x = 5,779,546.61
5. Step 5: Solve for x
   x = 5,779,546.61/2,209.63
6. Step 6: Final answer
   x = 2,615.62