Finding the Fourth Proportional to 5,080.56, 7,620.72 and 1,961.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,080.56 : 7,620.72 = 1,961.22 : x
2. Step 2: Convert to fraction form
   5,080.56/7,620.72 = 1,961.22/x
3. Step 3: Cross multiply
   5,080.56x = 7,620.72 × 1,961.22
4. Step 4: Simplify right side
   5,080.56x = 14,945,908.48
5. Step 5: Solve for x
   x = 14,945,908.48/5,080.56
6. Step 6: Final answer
   x = 2,941.78