Finding the Fourth Proportional to 2,953.17, 4,429.98 and 1,005.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.17 : 4,429.98 = 1,005.39 : x
2. Step 2: Convert to fraction form
   2,953.17/4,429.98 = 1,005.39/x
3. Step 3: Cross multiply
   2,953.17x = 4,429.98 × 1,005.39
4. Step 4: Simplify right side
   2,953.17x = 4,453,857.59
5. Step 5: Solve for x
   x = 4,453,857.59/2,953.17
6. Step 6: Final answer
   x = 1,508.16