Finding the Fourth Proportional to 1,034.76, 1,427.96 and 609.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.76 : 1,427.96 = 609.30 : x
2. Step 2: Convert to fraction form
   1,034.76/1,427.96 = 609.30/x
3. Step 3: Cross multiply
   1,034.76x = 1,427.96 × 609.30
4. Step 4: Simplify right side
   1,034.76x = 870,056.03
5. Step 5: Solve for x
   x = 870,056.03/1,034.76
6. Step 6: Final answer
   x = 840.83