Finding the Fourth Proportional to 1,036.82, 1,430.81 and 617.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.82 : 1,430.81 = 617.38 : x
2. Step 2: Convert to fraction form
   1,036.82/1,430.81 = 617.38/x
3. Step 3: Cross multiply
   1,036.82x = 1,430.81 × 617.38
4. Step 4: Simplify right side
   1,036.82x = 883,350.55
5. Step 5: Solve for x
   x = 883,350.55/1,036.82
6. Step 6: Final answer
   x = 851.98