Finding the Fourth Proportional to 1,870.75, 2,581.43 and 1,198.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.75 : 2,581.43 = 1,198.25 : x
2. Step 2: Convert to fraction form
   1,870.75/2,581.43 = 1,198.25/x
3. Step 3: Cross multiply
   1,870.75x = 2,581.43 × 1,198.25
4. Step 4: Simplify right side
   1,870.75x = 3,093,189.28
5. Step 5: Solve for x
   x = 3,093,189.28/1,870.75
6. Step 6: Final answer
   x = 1,653.45