Finding the Fourth Proportional to 2,216.39, 3,325.41 and 1,177.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.39 : 3,325.41 = 1,177.16 : x
2. Step 2: Convert to fraction form
   2,216.39/3,325.41 = 1,177.16/x
3. Step 3: Cross multiply
   2,216.39x = 3,325.41 × 1,177.16
4. Step 4: Simplify right side
   2,216.39x = 3,914,523.01
5. Step 5: Solve for x
   x = 3,914,523.01/2,216.39
6. Step 6: Final answer
   x = 1,766.17