Finding the Fourth Proportional to 1,951.55, 2,694.24 and 1,290.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,951.55 : 2,694.24 = 1,290.32 : x
2. Step 2: Convert to fraction form
   1,951.55/2,694.24 = 1,290.32/x
3. Step 3: Cross multiply
   1,951.55x = 2,694.24 × 1,290.32
4. Step 4: Simplify right side
   1,951.55x = 3,476,418.29
5. Step 5: Solve for x
   x = 3,476,418.29/1,951.55
6. Step 6: Final answer
   x = 1,781.37