Finding the Fourth Proportional to 2,084.93, 3,127.90 and 698.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.93 : 3,127.90 = 698.28 : x
2. Step 2: Convert to fraction form
   2,084.93/3,127.90 = 698.28/x
3. Step 3: Cross multiply
   2,084.93x = 3,127.90 × 698.28
4. Step 4: Simplify right side
   2,084.93x = 2,184,150.01
5. Step 5: Solve for x
   x = 2,184,150.01/2,084.93
6. Step 6: Final answer
   x = 1,047.59