Finding the Fourth Proportional to 1,659.59, 2,290.12 and 951.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.59 : 2,290.12 = 951.42 : x
2. Step 2: Convert to fraction form
   1,659.59/2,290.12 = 951.42/x
3. Step 3: Cross multiply
   1,659.59x = 2,290.12 × 951.42
4. Step 4: Simplify right side
   1,659.59x = 2,178,865.97
5. Step 5: Solve for x
   x = 2,178,865.97/1,659.59
6. Step 6: Final answer
   x = 1,312.89