Finding the Fourth Proportional to 1,081.53, 1,492.40 and 662.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.53 : 1,492.40 = 662.00 : x
2. Step 2: Convert to fraction form
   1,081.53/1,492.40 = 662.00/x
3. Step 3: Cross multiply
   1,081.53x = 1,492.40 × 662.00
4. Step 4: Simplify right side
   1,081.53x = 987,965.33
5. Step 5: Solve for x
   x = 987,965.33/1,081.53
6. Step 6: Final answer
   x = 913.49