Finding the Fourth Proportional to 1,894.16, 2,836.48 and 1,198.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,894.16 : 2,836.48 = 1,198.72 : x
2. Step 2: Convert to fraction form
   1,894.16/2,836.48 = 1,198.72/x
3. Step 3: Cross multiply
   1,894.16x = 2,836.48 × 1,198.72
4. Step 4: Simplify right side
   1,894.16x = 3,400,145.31
5. Step 5: Solve for x
   x = 3,400,145.31/1,894.16
6. Step 6: Final answer
   x = 1,795.07