Finding the Fourth Proportional to 1,498.72, 2,249.52 and 816.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.72 : 2,249.52 = 816.16 : x
2. Step 2: Convert to fraction form
   1,498.72/2,249.52 = 816.16/x
3. Step 3: Cross multiply
   1,498.72x = 2,249.52 × 816.16
4. Step 4: Simplify right side
   1,498.72x = 1,835,968.24
5. Step 5: Solve for x
   x = 1,835,968.24/1,498.72
6. Step 6: Final answer
   x = 1,225.02