Finding the Fourth Proportional to 2,382.72, 3,570.18 and 2,291.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.72 : 3,570.18 = 2,291.60 : x
2. Step 2: Convert to fraction form
   2,382.72/3,570.18 = 2,291.60/x
3. Step 3: Cross multiply
   2,382.72x = 3,570.18 × 2,291.60
4. Step 4: Simplify right side
   2,382.72x = 8,181,406.64
5. Step 5: Solve for x
   x = 8,181,406.64/2,382.72
6. Step 6: Final answer
   x = 3,433.64