Finding the Fourth Proportional to 1,081.49, 1,492.54 and 609.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.49 : 1,492.54 = 609.47 : x
2. Step 2: Convert to fraction form
   1,081.49/1,492.54 = 609.47/x
3. Step 3: Cross multiply
   1,081.49x = 1,492.54 × 609.47
4. Step 4: Simplify right side
   1,081.49x = 909,649.37
5. Step 5: Solve for x
   x = 909,649.37/1,081.49
6. Step 6: Final answer
   x = 841.11