Finding the Fourth Proportional to 2,777.42, 3,826.34 and 1,936.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,777.42 : 3,826.34 = 1,936.60 : x
2. Step 2: Convert to fraction form
   2,777.42/3,826.34 = 1,936.60/x
3. Step 3: Cross multiply
   2,777.42x = 3,826.34 × 1,936.60
4. Step 4: Simplify right side
   2,777.42x = 7,410,090.04
5. Step 5: Solve for x
   x = 7,410,090.04/2,777.42
6. Step 6: Final answer
   x = 2,667.98