Finding the Fourth Proportional to 1,062.82, 1,467.06 and 620.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.82 : 1,467.06 = 620.86 : x
2. Step 2: Convert to fraction form
   1,062.82/1,467.06 = 620.86/x
3. Step 3: Cross multiply
   1,062.82x = 1,467.06 × 620.86
4. Step 4: Simplify right side
   1,062.82x = 910,838.87
5. Step 5: Solve for x
   x = 910,838.87/1,062.82
6. Step 6: Final answer
   x = 857.00