Finding the Fourth Proportional to 2,485.54, 3,429.57 and 1,699.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.54 : 3,429.57 = 1,699.30 : x
2. Step 2: Convert to fraction form
   2,485.54/3,429.57 = 1,699.30/x
3. Step 3: Cross multiply
   2,485.54x = 3,429.57 × 1,699.30
4. Step 4: Simplify right side
   2,485.54x = 5,827,868.30
5. Step 5: Solve for x
   x = 5,827,868.30/2,485.54
6. Step 6: Final answer
   x = 2,344.71