Finding the Fourth Proportional to 2,673.13, 4,010.33 and 1,211.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.13 : 4,010.33 = 1,211.89 : x
2. Step 2: Convert to fraction form
   2,673.13/4,010.33 = 1,211.89/x
3. Step 3: Cross multiply
   2,673.13x = 4,010.33 × 1,211.89
4. Step 4: Simplify right side
   2,673.13x = 4,860,078.82
5. Step 5: Solve for x
   x = 4,860,078.82/2,673.13
6. Step 6: Final answer
   x = 1,818.12