Finding the Fourth Proportional to 1,951.22, 2,925.78 and 854.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,951.22 : 2,925.78 = 854.31 : x
2. Step 2: Convert to fraction form
   1,951.22/2,925.78 = 854.31/x
3. Step 3: Cross multiply
   1,951.22x = 2,925.78 × 854.31
4. Step 4: Simplify right side
   1,951.22x = 2,499,515.80
5. Step 5: Solve for x
   x = 2,499,515.80/1,951.22
6. Step 6: Final answer
   x = 1,281.00