Finding the Fourth Proportional to 2,057.05, 3,085.76 and 758.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.05 : 3,085.76 = 758.53 : x
2. Step 2: Convert to fraction form
   2,057.05/3,085.76 = 758.53/x
3. Step 3: Cross multiply
   2,057.05x = 3,085.76 × 758.53
4. Step 4: Simplify right side
   2,057.05x = 2,340,641.53
5. Step 5: Solve for x
   x = 2,340,641.53/2,057.05
6. Step 6: Final answer
   x = 1,137.86