Finding the Fourth Proportional to 3,895.16, 5,842.78 and 1,814.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.16 : 5,842.78 = 1,814.57 : x
2. Step 2: Convert to fraction form
   3,895.16/5,842.78 = 1,814.57/x
3. Step 3: Cross multiply
   3,895.16x = 5,842.78 × 1,814.57
4. Step 4: Simplify right side
   3,895.16x = 10,602,099.55
5. Step 5: Solve for x
   x = 10,602,099.55/3,895.16
6. Step 6: Final answer
   x = 2,721.87