Finding the Fourth Proportional to 2,507.68, 3,761.88 and 1,047.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.68 : 3,761.88 = 1,047.12 : x
2. Step 2: Convert to fraction form
   2,507.68/3,761.88 = 1,047.12/x
3. Step 3: Cross multiply
   2,507.68x = 3,761.88 × 1,047.12
4. Step 4: Simplify right side
   2,507.68x = 3,939,139.79
5. Step 5: Solve for x
   x = 3,939,139.79/2,507.68
6. Step 6: Final answer
   x = 1,570.83