Finding the Fourth Proportional to 1,081.72, 1,492.41 and 633.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.72 : 1,492.41 = 633.37 : x
2. Step 2: Convert to fraction form
   1,081.72/1,492.41 = 633.37/x
3. Step 3: Cross multiply
   1,081.72x = 1,492.41 × 633.37
4. Step 4: Simplify right side
   1,081.72x = 945,247.72
5. Step 5: Solve for x
   x = 945,247.72/1,081.72
6. Step 6: Final answer
   x = 873.84