Finding the Fourth Proportional to 2,262.69, 3,389.99 and 800.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,262.69 : 3,389.99 = 800.91 : x
2. Step 2: Convert to fraction form
   2,262.69/3,389.99 = 800.91/x
3. Step 3: Cross multiply
   2,262.69x = 3,389.99 × 800.91
4. Step 4: Simplify right side
   2,262.69x = 2,715,072.89
5. Step 5: Solve for x
   x = 2,715,072.89/2,262.69
6. Step 6: Final answer
   x = 1,199.93