Finding the Fourth Proportional to 2,179.41, 3,007.40 and 1,235.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.41 : 3,007.40 = 1,235.28 : x
2. Step 2: Convert to fraction form
   2,179.41/3,007.40 = 1,235.28/x
3. Step 3: Cross multiply
   2,179.41x = 3,007.40 × 1,235.28
4. Step 4: Simplify right side
   2,179.41x = 3,714,986.17
5. Step 5: Solve for x
   x = 3,714,986.17/2,179.41
6. Step 6: Final answer
   x = 1,704.59