Finding the Fourth Proportional to 3,128.85, 4,693.37 and 1,180.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.85 : 4,693.37 = 1,180.62 : x
2. Step 2: Convert to fraction form
   3,128.85/4,693.37 = 1,180.62/x
3. Step 3: Cross multiply
   3,128.85x = 4,693.37 × 1,180.62
4. Step 4: Simplify right side
   3,128.85x = 5,541,080.59
5. Step 5: Solve for x
   x = 5,541,080.59/3,128.85
6. Step 6: Final answer
   x = 1,770.96