Finding the Fourth Proportional to 2,509.15, 3,764.33 and 1,047.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,509.15 : 3,764.33 = 1,047.49 : x
2. Step 2: Convert to fraction form
   2,509.15/3,764.33 = 1,047.49/x
3. Step 3: Cross multiply
   2,509.15x = 3,764.33 × 1,047.49
4. Step 4: Simplify right side
   2,509.15x = 3,943,092.79
5. Step 5: Solve for x
   x = 3,943,092.79/2,509.15
6. Step 6: Final answer
   x = 1,571.49