Finding the Fourth Proportional to 1,885.86, 2,601.81 and 1,057.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.86 : 2,601.81 = 1,057.86 : x
2. Step 2: Convert to fraction form
   1,885.86/2,601.81 = 1,057.86/x
3. Step 3: Cross multiply
   1,885.86x = 2,601.81 × 1,057.86
4. Step 4: Simplify right side
   1,885.86x = 2,752,350.73
5. Step 5: Solve for x
   x = 2,752,350.73/1,885.86
6. Step 6: Final answer
   x = 1,459.47