Finding the Fourth Proportional to 3,900.89, 5,852.88 and 1,709.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.89 : 5,852.88 = 1,709.96 : x
2. Step 2: Convert to fraction form
   3,900.89/5,852.88 = 1,709.96/x
3. Step 3: Cross multiply
   3,900.89x = 5,852.88 × 1,709.96
4. Step 4: Simplify right side
   3,900.89x = 10,008,190.68
5. Step 5: Solve for x
   x = 10,008,190.68/3,900.89
6. Step 6: Final answer
   x = 2,565.62