Finding the Fourth Proportional to 2,765.00, 4,147.81 and 1,379.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,765.00 : 4,147.81 = 1,379.30 : x
2. Step 2: Convert to fraction form
   2,765.00/4,147.81 = 1,379.30/x
3. Step 3: Cross multiply
   2,765.00x = 4,147.81 × 1,379.30
4. Step 4: Simplify right side
   2,765.00x = 5,721,050.15
5. Step 5: Solve for x
   x = 5,721,050.15/2,765.00
6. Step 6: Final answer
   x = 2,069.09