Finding the Fourth Proportional to 3,290.64, 4,940.64 and 2,054.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,290.64 : 4,940.64 = 2,054.52 : x
2. Step 2: Convert to fraction form
   3,290.64/4,940.64 = 2,054.52/x
3. Step 3: Cross multiply
   3,290.64x = 4,940.64 × 2,054.52
4. Step 4: Simplify right side
   3,290.64x = 10,150,643.69
5. Step 5: Solve for x
   x = 10,150,643.69/3,290.64
6. Step 6: Final answer
   x = 3,084.70