Finding the Fourth Proportional to 3,006.72, 4,513.32 and 1,276.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,006.72 : 4,513.32 = 1,276.56 : x
2. Step 2: Convert to fraction form
   3,006.72/4,513.32 = 1,276.56/x
3. Step 3: Cross multiply
   3,006.72x = 4,513.32 × 1,276.56
4. Step 4: Simplify right side
   3,006.72x = 5,761,523.78
5. Step 5: Solve for x
   x = 5,761,523.78/3,006.72
6. Step 6: Final answer
   x = 1,916.22