Finding the Fourth Proportional to 2,996.80, 4,139.52 and 2,296.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,996.80 : 4,139.52 = 2,296.96 : x
2. Step 2: Convert to fraction form
   2,996.80/4,139.52 = 2,296.96/x
3. Step 3: Cross multiply
   2,996.80x = 4,139.52 × 2,296.96
4. Step 4: Simplify right side
   2,996.80x = 9,508,311.86
5. Step 5: Solve for x
   x = 9,508,311.86/2,996.80
6. Step 6: Final answer
   x = 3,172.82