Finding the Fourth Proportional to 2,862.41, 3,947.56 and 1,965.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,862.41 : 3,947.56 = 1,965.74 : x
2. Step 2: Convert to fraction form
   2,862.41/3,947.56 = 1,965.74/x
3. Step 3: Cross multiply
   2,862.41x = 3,947.56 × 1,965.74
4. Step 4: Simplify right side
   2,862.41x = 7,759,876.59
5. Step 5: Solve for x
   x = 7,759,876.59/2,862.41
6. Step 6: Final answer
   x = 2,710.96