Finding the Fourth Proportional to 3,464.82, 4,784.22 and 2,139.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,464.82 : 4,784.22 = 2,139.30 : x
2. Step 2: Convert to fraction form
   3,464.82/4,784.22 = 2,139.30/x
3. Step 3: Cross multiply
   3,464.82x = 4,784.22 × 2,139.30
4. Step 4: Simplify right side
   3,464.82x = 10,234,881.85
5. Step 5: Solve for x
   x = 10,234,881.85/3,464.82
6. Step 6: Final answer
   x = 2,953.94