Finding the Fourth Proportional to 1,941.27, 2,678.92 and 1,057.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.27 : 2,678.92 = 1,057.05 : x
2. Step 2: Convert to fraction form
   1,941.27/2,678.92 = 1,057.05/x
3. Step 3: Cross multiply
   1,941.27x = 2,678.92 × 1,057.05
4. Step 4: Simplify right side
   1,941.27x = 2,831,755.69
5. Step 5: Solve for x
   x = 2,831,755.69/1,941.27
6. Step 6: Final answer
   x = 1,458.72