Finding the Fourth Proportional to 2,698.28, 4,046.70 and 1,238.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,698.28 : 4,046.70 = 1,238.12 : x
2. Step 2: Convert to fraction form
   2,698.28/4,046.70 = 1,238.12/x
3. Step 3: Cross multiply
   2,698.28x = 4,046.70 × 1,238.12
4. Step 4: Simplify right side
   2,698.28x = 5,010,300.20
5. Step 5: Solve for x
   x = 5,010,300.20/2,698.28
6. Step 6: Final answer
   x = 1,856.85