Finding the Fourth Proportional to 1,821.55, 2,734.49 and 1,747.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821.55 : 2,734.49 = 1,747.28 : x
2. Step 2: Convert to fraction form
   1,821.55/2,734.49 = 1,747.28/x
3. Step 3: Cross multiply
   1,821.55x = 2,734.49 × 1,747.28
4. Step 4: Simplify right side
   1,821.55x = 4,777,930.89
5. Step 5: Solve for x
   x = 4,777,930.89/1,821.55
6. Step 6: Final answer
   x = 2,623.01