Finding the Fourth Proportional to 2,507.79, 3,761.88 and 1,047.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.79 : 3,761.88 = 1,047.36 : x
2. Step 2: Convert to fraction form
   2,507.79/3,761.88 = 1,047.36/x
3. Step 3: Cross multiply
   2,507.79x = 3,761.88 × 1,047.36
4. Step 4: Simplify right side
   2,507.79x = 3,940,042.64
5. Step 5: Solve for x
   x = 3,940,042.64/2,507.79
6. Step 6: Final answer
   x = 1,571.12