Finding the Fourth Proportional to 2,179.21, 3,007.27 and 1,234.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.21 : 3,007.27 = 1,234.96 : x
2. Step 2: Convert to fraction form
   2,179.21/3,007.27 = 1,234.96/x
3. Step 3: Cross multiply
   2,179.21x = 3,007.27 × 1,234.96
4. Step 4: Simplify right side
   2,179.21x = 3,713,858.16
5. Step 5: Solve for x
   x = 3,713,858.16/2,179.21
6. Step 6: Final answer
   x = 1,704.22