Finding the Fourth Proportional to 1,082.01, 1,492.81 and 609.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.01 : 1,492.81 = 609.85 : x
2. Step 2: Convert to fraction form
   1,082.01/1,492.81 = 609.85/x
3. Step 3: Cross multiply
   1,082.01x = 1,492.81 × 609.85
4. Step 4: Simplify right side
   1,082.01x = 910,385.55
5. Step 5: Solve for x
   x = 910,385.55/1,082.01
6. Step 6: Final answer
   x = 841.39