Finding the Fourth Proportional to 1,492.92, 2,240.52 and 671.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.92 : 2,240.52 = 671.76 : x
2. Step 2: Convert to fraction form
   1,492.92/2,240.52 = 671.76/x
3. Step 3: Cross multiply
   1,492.92x = 2,240.52 × 671.76
4. Step 4: Simplify right side
   1,492.92x = 1,505,091.72
5. Step 5: Solve for x
   x = 1,505,091.72/1,492.92
6. Step 6: Final answer
   x = 1,008.15