Finding the Fourth Proportional to 2,238.04, 3,086.46 and 1,398.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.04 : 3,086.46 = 1,398.82 : x
2. Step 2: Convert to fraction form
   2,238.04/3,086.46 = 1,398.82/x
3. Step 3: Cross multiply
   2,238.04x = 3,086.46 × 1,398.82
4. Step 4: Simplify right side
   2,238.04x = 4,317,401.98
5. Step 5: Solve for x
   x = 4,317,401.98/2,238.04
6. Step 6: Final answer
   x = 1,929.10