Finding the Fourth Proportional to 1,825.98, 2,721.60 and 1,722.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,825.98 : 2,721.60 = 1,722.18 : x
2. Step 2: Convert to fraction form
   1,825.98/2,721.60 = 1,722.18/x
3. Step 3: Cross multiply
   1,825.98x = 2,721.60 × 1,722.18
4. Step 4: Simplify right side
   1,825.98x = 4,687,085.09
5. Step 5: Solve for x
   x = 4,687,085.09/1,825.98
6. Step 6: Final answer
   x = 2,566.89