Finding the Fourth Proportional to 2,085.37, 3,127.41 and 698.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.37 : 3,127.41 = 698.38 : x
2. Step 2: Convert to fraction form
   2,085.37/3,127.41 = 698.38/x
3. Step 3: Cross multiply
   2,085.37x = 3,127.41 × 698.38
4. Step 4: Simplify right side
   2,085.37x = 2,184,112.78
5. Step 5: Solve for x
   x = 2,184,112.78/2,085.37
6. Step 6: Final answer
   x = 1,047.35