Finding the Fourth Proportional to 2,996.72, 4,126.56 and 2,928.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,996.72 : 4,126.56 = 2,928.56 : x
2. Step 2: Convert to fraction form
   2,996.72/4,126.56 = 2,928.56/x
3. Step 3: Cross multiply
   2,996.72x = 4,126.56 × 2,928.56
4. Step 4: Simplify right side
   2,996.72x = 12,084,878.55
5. Step 5: Solve for x
   x = 12,084,878.55/2,996.72
6. Step 6: Final answer
   x = 4,032.70