Finding the Fourth Proportional to 2,098.34, 3,145.97 and 1,057.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.34 : 3,145.97 = 1,057.86 : x
2. Step 2: Convert to fraction form
   2,098.34/3,145.97 = 1,057.86/x
3. Step 3: Cross multiply
   2,098.34x = 3,145.97 × 1,057.86
4. Step 4: Simplify right side
   2,098.34x = 3,327,998.47
5. Step 5: Solve for x
   x = 3,327,998.47/2,098.34
6. Step 6: Final answer
   x = 1,586.02