Finding the Fourth Proportional to 3,109.12, 4,662.06 and 1,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.12 : 4,662.06 = 1,159.72 : x
2. Step 2: Convert to fraction form
   3,109.12/4,662.06 = 1,159.72/x
3. Step 3: Cross multiply
   3,109.12x = 4,662.06 × 1,159.72
4. Step 4: Simplify right side
   3,109.12x = 5,406,668.22
5. Step 5: Solve for x
   x = 5,406,668.22/3,109.12
6. Step 6: Final answer
   x = 1,738.97