Finding the Fourth Proportional to 1,062.58, 1,466.01 and 620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.58 : 1,466.01 = 620.50 : x
2. Step 2: Convert to fraction form
   1,062.58/1,466.01 = 620.50/x
3. Step 3: Cross multiply
   1,062.58x = 1,466.01 × 620.50
4. Step 4: Simplify right side
   1,062.58x = 909,659.21
5. Step 5: Solve for x
   x = 909,659.21/1,062.58
6. Step 6: Final answer
   x = 856.09