Finding the Fourth Proportional to 2,509.49, 3,764.37 and 1,047.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,509.49 : 3,764.37 = 1,047.17 : x
2. Step 2: Convert to fraction form
   2,509.49/3,764.37 = 1,047.17/x
3. Step 3: Cross multiply
   2,509.49x = 3,764.37 × 1,047.17
4. Step 4: Simplify right side
   2,509.49x = 3,941,935.33
5. Step 5: Solve for x
   x = 3,941,935.33/2,509.49
6. Step 6: Final answer
   x = 1,570.81