Finding the Fourth Proportional to 1,894.82, 2,613.87 and 1,231.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,894.82 : 2,613.87 = 1,231.43 : x
2. Step 2: Convert to fraction form
   1,894.82/2,613.87 = 1,231.43/x
3. Step 3: Cross multiply
   1,894.82x = 2,613.87 × 1,231.43
4. Step 4: Simplify right side
   1,894.82x = 3,218,784.86
5. Step 5: Solve for x
   x = 3,218,784.86/1,894.82
6. Step 6: Final answer
   x = 1,698.73