Finding the Fourth Proportional to 3,434.53, 5,150.78 and 1,790.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,434.53 : 5,150.78 = 1,790.23 : x
2. Step 2: Convert to fraction form
   3,434.53/5,150.78 = 1,790.23/x
3. Step 3: Cross multiply
   3,434.53x = 5,150.78 × 1,790.23
4. Step 4: Simplify right side
   3,434.53x = 9,221,080.88
5. Step 5: Solve for x
   x = 9,221,080.88/3,434.53
6. Step 6: Final answer
   x = 2,684.82