Finding the Fourth Proportional to 1,613.88, 2,414.94 and 1,379.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.88 : 2,414.94 = 1,379.78 : x
2. Step 2: Convert to fraction form
   1,613.88/2,414.94 = 1,379.78/x
3. Step 3: Cross multiply
   1,613.88x = 2,414.94 × 1,379.78
4. Step 4: Simplify right side
   1,613.88x = 3,332,085.91
5. Step 5: Solve for x
   x = 3,332,085.91/1,613.88
6. Step 6: Final answer
   x = 2,064.64