Finding the Fourth Proportional to 2,308.21, 3,184.30 and 1,677.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.21 : 3,184.30 = 1,677.22 : x
2. Step 2: Convert to fraction form
   2,308.21/3,184.30 = 1,677.22/x
3. Step 3: Cross multiply
   2,308.21x = 3,184.30 × 1,677.22
4. Step 4: Simplify right side
   2,308.21x = 5,340,771.65
5. Step 5: Solve for x
   x = 5,340,771.65/2,308.21
6. Step 6: Final answer
   x = 2,313.82