Finding the Fourth Proportional to 1,500.84, 2,249.82 and 720.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.84 : 2,249.82 = 720.45 : x
2. Step 2: Convert to fraction form
   1,500.84/2,249.82 = 720.45/x
3. Step 3: Cross multiply
   1,500.84x = 2,249.82 × 720.45
4. Step 4: Simplify right side
   1,500.84x = 1,620,882.82
5. Step 5: Solve for x
   x = 1,620,882.82/1,500.84
6. Step 6: Final answer
   x = 1,079.98