Finding the Fourth Proportional to 2,674.82, 4,012.56 and 920.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.82 : 4,012.56 = 920.18 : x
2. Step 2: Convert to fraction form
   2,674.82/4,012.56 = 920.18/x
3. Step 3: Cross multiply
   2,674.82x = 4,012.56 × 920.18
4. Step 4: Simplify right side
   2,674.82x = 3,692,277.46
5. Step 5: Solve for x
   x = 3,692,277.46/2,674.82
6. Step 6: Final answer
   x = 1,380.38