Finding the Fourth Proportional to 2,087.37, 3,130.25 and 1,112.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.37 : 3,130.25 = 1,112.94 : x
2. Step 2: Convert to fraction form
   2,087.37/3,130.25 = 1,112.94/x
3. Step 3: Cross multiply
   2,087.37x = 3,130.25 × 1,112.94
4. Step 4: Simplify right side
   2,087.37x = 3,483,774.87
5. Step 5: Solve for x
   x = 3,483,774.87/2,087.37
6. Step 6: Final answer
   x = 1,668.98