Finding the Fourth Proportional to 2,087.94, 3,130.25 and 1,047.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.94 : 3,130.25 = 1,047.38 : x
2. Step 2: Convert to fraction form
   2,087.94/3,130.25 = 1,047.38/x
3. Step 3: Cross multiply
   2,087.94x = 3,130.25 × 1,047.38
4. Step 4: Simplify right side
   2,087.94x = 3,278,540.36
5. Step 5: Solve for x
   x = 3,278,540.36/2,087.94
6. Step 6: Final answer
   x = 1,570.23