Finding the Fourth Proportional to 1,092.32, 1,507.27 and 620.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.32 : 1,507.27 = 620.18 : x
2. Step 2: Convert to fraction form
   1,092.32/1,507.27 = 620.18/x
3. Step 3: Cross multiply
   1,092.32x = 1,507.27 × 620.18
4. Step 4: Simplify right side
   1,092.32x = 934,778.71
5. Step 5: Solve for x
   x = 934,778.71/1,092.32
6. Step 6: Final answer
   x = 855.77