Finding the Fourth Proportional to 3,164.55, 4,743.50 and 1,188.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,164.55 : 4,743.50 = 1,188.89 : x
2. Step 2: Convert to fraction form
   3,164.55/4,743.50 = 1,188.89/x
3. Step 3: Cross multiply
   3,164.55x = 4,743.50 × 1,188.89
4. Step 4: Simplify right side
   3,164.55x = 5,639,514.52
5. Step 5: Solve for x
   x = 5,639,514.52/3,164.55
6. Step 6: Final answer
   x = 1,782.09