Finding the Fourth Proportional to 2,979.48, 4,469.72 and 1,005.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.48 : 4,469.72 = 1,005.29 : x
2. Step 2: Convert to fraction form
   2,979.48/4,469.72 = 1,005.29/x
3. Step 3: Cross multiply
   2,979.48x = 4,469.72 × 1,005.29
4. Step 4: Simplify right side
   2,979.48x = 4,493,364.82
5. Step 5: Solve for x
   x = 4,493,364.82/2,979.48
6. Step 6: Final answer
   x = 1,508.10