Finding the Fourth Proportional to 2,062.57, 3,095.06 and 830.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.57 : 3,095.06 = 830.09 : x
2. Step 2: Convert to fraction form
   2,062.57/3,095.06 = 830.09/x
3. Step 3: Cross multiply
   2,062.57x = 3,095.06 × 830.09
4. Step 4: Simplify right side
   2,062.57x = 2,569,174.20
5. Step 5: Solve for x
   x = 2,569,174.20/2,062.57
6. Step 6: Final answer
   x = 1,245.62