Finding the Fourth Proportional to 1,951.83, 2,690.42 and 1,636.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,951.83 : 2,690.42 = 1,636.47 : x
2. Step 2: Convert to fraction form
   1,951.83/2,690.42 = 1,636.47/x
3. Step 3: Cross multiply
   1,951.83x = 2,690.42 × 1,636.47
4. Step 4: Simplify right side
   1,951.83x = 4,402,783.44
5. Step 5: Solve for x
   x = 4,402,783.44/1,951.83
6. Step 6: Final answer
   x = 2,255.72