Finding the Fourth Proportional to 2,485.89, 3,431.16 and 1,700.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.89 : 3,431.16 = 1,700.19 : x
2. Step 2: Convert to fraction form
   2,485.89/3,431.16 = 1,700.19/x
3. Step 3: Cross multiply
   2,485.89x = 3,431.16 × 1,700.19
4. Step 4: Simplify right side
   2,485.89x = 5,833,623.92
5. Step 5: Solve for x
   x = 5,833,623.92/2,485.89
6. Step 6: Final answer
   x = 2,346.69