Finding the Fourth Proportional to 2,700.42, 4,048.56 and 1,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.42 : 4,048.56 = 1,238.52 : x
2. Step 2: Convert to fraction form
   2,700.42/4,048.56 = 1,238.52/x
3. Step 3: Cross multiply
   2,700.42x = 4,048.56 × 1,238.52
4. Step 4: Simplify right side
   2,700.42x = 5,014,222.53
5. Step 5: Solve for x
   x = 5,014,222.53/2,700.42
6. Step 6: Final answer
   x = 1,856.83