Finding the Fourth Proportional to 1,081.42, 1,492.54 and 633.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.42 : 1,492.54 = 633.54 : x
2. Step 2: Convert to fraction form
   1,081.42/1,492.54 = 633.54/x
3. Step 3: Cross multiply
   1,081.42x = 1,492.54 × 633.54
4. Step 4: Simplify right side
   1,081.42x = 945,583.79
5. Step 5: Solve for x
   x = 945,583.79/1,081.42
6. Step 6: Final answer
   x = 874.39