Finding the Fourth Proportional to 2,771.67, 3,818.01 and 1,930.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,771.67 : 3,818.01 = 1,930.89 : x
2. Step 2: Convert to fraction form
   2,771.67/3,818.01 = 1,930.89/x
3. Step 3: Cross multiply
   2,771.67x = 3,818.01 × 1,930.89
4. Step 4: Simplify right side
   2,771.67x = 7,372,157.33
5. Step 5: Solve for x
   x = 7,372,157.33/2,771.67
6. Step 6: Final answer
   x = 2,659.83