Finding the Fourth Proportional to 2,854.08, 3,938.69 and 1,791.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.08 : 3,938.69 = 1,791.89 : x
2. Step 2: Convert to fraction form
   2,854.08/3,938.69 = 1,791.89/x
3. Step 3: Cross multiply
   2,854.08x = 3,938.69 × 1,791.89
4. Step 4: Simplify right side
   2,854.08x = 7,057,670.57
5. Step 5: Solve for x
   x = 7,057,670.57/2,854.08
6. Step 6: Final answer
   x = 2,472.84