Finding the Fourth Proportional to 2,216.72, 3,326.04 and 1,189.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.72 : 3,326.04 = 1,189.52 : x
2. Step 2: Convert to fraction form
   2,216.72/3,326.04 = 1,189.52/x
3. Step 3: Cross multiply
   2,216.72x = 3,326.04 × 1,189.52
4. Step 4: Simplify right side
   2,216.72x = 3,956,391.10
5. Step 5: Solve for x
   x = 3,956,391.10/2,216.72
6. Step 6: Final answer
   x = 1,784.80