Finding the Fourth Proportional to 1,492.20, 2,061.42 and 1,179.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.20 : 2,061.42 = 1,179.54 : x
2. Step 2: Convert to fraction form
   1,492.20/2,061.42 = 1,179.54/x
3. Step 3: Cross multiply
   1,492.20x = 2,061.42 × 1,179.54
4. Step 4: Simplify right side
   1,492.20x = 2,431,527.35
5. Step 5: Solve for x
   x = 2,431,527.35/1,492.20
6. Step 6: Final answer
   x = 1,629.49