Finding the Fourth Proportional to 2,218.67, 3,323.68 and 1,729.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.67 : 3,323.68 = 1,729.43 : x
2. Step 2: Convert to fraction form
   2,218.67/3,323.68 = 1,729.43/x
3. Step 3: Cross multiply
   2,218.67x = 3,323.68 × 1,729.43
4. Step 4: Simplify right side
   2,218.67x = 5,748,071.90
5. Step 5: Solve for x
   x = 5,748,071.90/2,218.67
6. Step 6: Final answer
   x = 2,590.77