Finding the Fourth Proportional to 6,844.55, 10,265.31 and 1,912.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,844.55 : 10,265.31 = 1,912.86 : x
2. Step 2: Convert to fraction form
   6,844.55/10,265.31 = 1,912.86/x
3. Step 3: Cross multiply
   6,844.55x = 10,265.31 × 1,912.86
4. Step 4: Simplify right side
   6,844.55x = 19,636,100.89
5. Step 5: Solve for x
   x = 19,636,100.89/6,844.55
6. Step 6: Final answer
   x = 2,868.87