Finding the Fourth Proportional to 3,160.50, 4,741.20 and 1,080.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,160.50 : 4,741.20 = 1,080.69 : x
2. Step 2: Convert to fraction form
   3,160.50/4,741.20 = 1,080.69/x
3. Step 3: Cross multiply
   3,160.50x = 4,741.20 × 1,080.69
4. Step 4: Simplify right side
   3,160.50x = 5,123,767.43
5. Step 5: Solve for x
   x = 5,123,767.43/3,160.50
6. Step 6: Final answer
   x = 1,621.19