Finding the Fourth Proportional to 2,851.98, 4,277.98 and 1,971.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.98 : 4,277.98 = 1,971.72 : x
2. Step 2: Convert to fraction form
   2,851.98/4,277.98 = 1,971.72/x
3. Step 3: Cross multiply
   2,851.98x = 4,277.98 × 1,971.72
4. Step 4: Simplify right side
   2,851.98x = 8,434,952.41
5. Step 5: Solve for x
   x = 8,434,952.41/2,851.98
6. Step 6: Final answer
   x = 2,957.58