Finding the Fourth Proportional to 3,878.56, 5,817.82 and 956.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,878.56 : 5,817.82 = 956.84 : x
2. Step 2: Convert to fraction form
   3,878.56/5,817.82 = 956.84/x
3. Step 3: Cross multiply
   3,878.56x = 5,817.82 × 956.84
4. Step 4: Simplify right side
   3,878.56x = 5,566,722.89
5. Step 5: Solve for x
   x = 5,566,722.89/3,878.56
6. Step 6: Final answer
   x = 1,435.26