Finding the Fourth Proportional to 2,929.59, 4,392.97 and 1,081.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,929.59 : 4,392.97 = 1,081.58 : x
2. Step 2: Convert to fraction form
   2,929.59/4,392.97 = 1,081.58/x
3. Step 3: Cross multiply
   2,929.59x = 4,392.97 × 1,081.58
4. Step 4: Simplify right side
   2,929.59x = 4,751,321.12
5. Step 5: Solve for x
   x = 4,751,321.12/2,929.59
6. Step 6: Final answer
   x = 1,621.84