Finding the Fourth Proportional to 2,522.96, 3,784.48 and 1,286.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.96 : 3,784.48 = 1,286.88 : x
2. Step 2: Convert to fraction form
   2,522.96/3,784.48 = 1,286.88/x
3. Step 3: Cross multiply
   2,522.96x = 3,784.48 × 1,286.88
4. Step 4: Simplify right side
   2,522.96x = 4,870,171.62
5. Step 5: Solve for x
   x = 4,870,171.62/2,522.96
6. Step 6: Final answer
   x = 1,930.34