Finding the Fourth Proportional to 2,953.76, 4,431.05 and 1,005.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.76 : 4,431.05 = 1,005.71 : x
2. Step 2: Convert to fraction form
   2,953.76/4,431.05 = 1,005.71/x
3. Step 3: Cross multiply
   2,953.76x = 4,431.05 × 1,005.71
4. Step 4: Simplify right side
   2,953.76x = 4,456,346.27
5. Step 5: Solve for x
   x = 4,456,346.27/2,953.76
6. Step 6: Final answer
   x = 1,508.70