Finding the Fourth Proportional to 3,850.56, 5,776.61 and 1,218.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,850.56 : 5,776.61 = 1,218.47 : x
2. Step 2: Convert to fraction form
   3,850.56/5,776.61 = 1,218.47/x
3. Step 3: Cross multiply
   3,850.56x = 5,776.61 × 1,218.47
4. Step 4: Simplify right side
   3,850.56x = 7,038,591.01
5. Step 5: Solve for x
   x = 7,038,591.01/3,850.56
6. Step 6: Final answer
   x = 1,827.94