Finding the Fourth Proportional to 2,697.72, 4,046.01 and 1,380.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697.72 : 4,046.01 = 1,380.06 : x
2. Step 2: Convert to fraction form
   2,697.72/4,046.01 = 1,380.06/x
3. Step 3: Cross multiply
   2,697.72x = 4,046.01 × 1,380.06
4. Step 4: Simplify right side
   2,697.72x = 5,583,736.56
5. Step 5: Solve for x
   x = 5,583,736.56/2,697.72
6. Step 6: Final answer
   x = 2,069.80