Finding the Fourth Proportional to 2,806.56, 4,209.72 and 754.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,806.56 : 4,209.72 = 754.56 : x
2. Step 2: Convert to fraction form
   2,806.56/4,209.72 = 754.56/x
3. Step 3: Cross multiply
   2,806.56x = 4,209.72 × 754.56
4. Step 4: Simplify right side
   2,806.56x = 3,176,486.32
5. Step 5: Solve for x
   x = 3,176,486.32/2,806.56
6. Step 6: Final answer
   x = 1,131.81