Finding the Fourth Proportional to 1,659.89, 2,290.52 and 951.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.89 : 2,290.52 = 951.57 : x
2. Step 2: Convert to fraction form
   1,659.89/2,290.52 = 951.57/x
3. Step 3: Cross multiply
   1,659.89x = 2,290.52 × 951.57
4. Step 4: Simplify right side
   1,659.89x = 2,179,585.36
5. Step 5: Solve for x
   x = 2,179,585.36/1,659.89
6. Step 6: Final answer
   x = 1,313.09