Finding the Fourth Proportional to 3,109.23, 4,665.06 and 1,161.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.23 : 4,665.06 = 1,161.59 : x
2. Step 2: Convert to fraction form
   3,109.23/4,665.06 = 1,161.59/x
3. Step 3: Cross multiply
   3,109.23x = 4,665.06 × 1,161.59
4. Step 4: Simplify right side
   3,109.23x = 5,418,863.72
5. Step 5: Solve for x
   x = 5,418,863.72/3,109.23
6. Step 6: Final answer
   x = 1,742.83