Finding the Fourth Proportional to 2,776.56, 4,165.56 and 1,045.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.56 : 4,165.56 = 1,045.68 : x
2. Step 2: Convert to fraction form
   2,776.56/4,165.56 = 1,045.68/x
3. Step 3: Cross multiply
   2,776.56x = 4,165.56 × 1,045.68
4. Step 4: Simplify right side
   2,776.56x = 4,355,842.78
5. Step 5: Solve for x
   x = 4,355,842.78/2,776.56
6. Step 6: Final answer
   x = 1,568.79