Finding the Fourth Proportional to 2,928.22, 4,394.05 and 1,080.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.22 : 4,394.05 = 1,080.62 : x
2. Step 2: Convert to fraction form
   2,928.22/4,394.05 = 1,080.62/x
3. Step 3: Cross multiply
   2,928.22x = 4,394.05 × 1,080.62
4. Step 4: Simplify right side
   2,928.22x = 4,748,298.31
5. Step 5: Solve for x
   x = 4,748,298.31/2,928.22
6. Step 6: Final answer
   x = 1,621.56