Finding the Fourth Proportional to 3,971.88, 5,960.55 and 1,783.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971.88 : 5,960.55 = 1,783.06 : x
2. Step 2: Convert to fraction form
   3,971.88/5,960.55 = 1,783.06/x
3. Step 3: Cross multiply
   3,971.88x = 5,960.55 × 1,783.06
4. Step 4: Simplify right side
   3,971.88x = 10,628,018.28
5. Step 5: Solve for x
   x = 10,628,018.28/3,971.88
6. Step 6: Final answer
   x = 2,675.82