Finding the Fourth Proportional to 1,659.24, 2,485.81 and 926.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.24 : 2,485.81 = 926.59 : x
2. Step 2: Convert to fraction form
   1,659.24/2,485.81 = 926.59/x
3. Step 3: Cross multiply
   1,659.24x = 2,485.81 × 926.59
4. Step 4: Simplify right side
   1,659.24x = 2,303,326.69
5. Step 5: Solve for x
   x = 2,303,326.69/1,659.24
6. Step 6: Final answer
   x = 1,388.18