Finding the Fourth Proportional to 2,659.41, 3,985.29 and 1,960.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.41 : 3,985.29 = 1,960.56 : x
2. Step 2: Convert to fraction form
   2,659.41/3,985.29 = 1,960.56/x
3. Step 3: Cross multiply
   2,659.41x = 3,985.29 × 1,960.56
4. Step 4: Simplify right side
   2,659.41x = 7,813,400.16
5. Step 5: Solve for x
   x = 7,813,400.16/2,659.41
6. Step 6: Final answer
   x = 2,938.02