Finding the Fourth Proportional to 1,941.91, 2,679.86 and 1,057.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.91 : 2,679.86 = 1,057.71 : x
2. Step 2: Convert to fraction form
   1,941.91/2,679.86 = 1,057.71/x
3. Step 3: Cross multiply
   1,941.91x = 2,679.86 × 1,057.71
4. Step 4: Simplify right side
   1,941.91x = 2,834,514.72
5. Step 5: Solve for x
   x = 2,834,514.72/1,941.91
6. Step 6: Final answer
   x = 1,459.65