Finding the Fourth Proportional to 2,736.85, 4,105.58 and 1,005.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.85 : 4,105.58 = 1,005.47 : x
2. Step 2: Convert to fraction form
   2,736.85/4,105.58 = 1,005.47/x
3. Step 3: Cross multiply
   2,736.85x = 4,105.58 × 1,005.47
4. Step 4: Simplify right side
   2,736.85x = 4,128,037.52
5. Step 5: Solve for x
   x = 4,128,037.52/2,736.85
6. Step 6: Final answer
   x = 1,508.32