Finding the Fourth Proportional to 1,951.47, 2,926.16 and 854.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,951.47 : 2,926.16 = 854.56 : x
2. Step 2: Convert to fraction form
   1,951.47/2,926.16 = 854.56/x
3. Step 3: Cross multiply
   1,951.47x = 2,926.16 × 854.56
4. Step 4: Simplify right side
   1,951.47x = 2,500,575.02
5. Step 5: Solve for x
   x = 2,500,575.02/1,951.47
6. Step 6: Final answer
   x = 1,281.38