Finding the Fourth Proportional to 2,769.56, 4,153.16 and 920.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,769.56 : 4,153.16 = 920.18 : x
2. Step 2: Convert to fraction form
   2,769.56/4,153.16 = 920.18/x
3. Step 3: Cross multiply
   2,769.56x = 4,153.16 × 920.18
4. Step 4: Simplify right side
   2,769.56x = 3,821,654.77
5. Step 5: Solve for x
   x = 3,821,654.77/2,769.56
6. Step 6: Final answer
   x = 1,379.88