Finding the Fourth Proportional to 2,709.65, 4,061.33 and 1,245.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.65 : 4,061.33 = 1,245.73 : x
2. Step 2: Convert to fraction form
   2,709.65/4,061.33 = 1,245.73/x
3. Step 3: Cross multiply
   2,709.65x = 4,061.33 × 1,245.73
4. Step 4: Simplify right side
   2,709.65x = 5,059,300.31
5. Step 5: Solve for x
   x = 5,059,300.31/2,709.65
6. Step 6: Final answer
   x = 1,867.15