Finding the Fourth Proportional to 1,299.05, 1,792.59 and 801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299.05 : 1,792.59 = 801.50 : x
2. Step 2: Convert to fraction form
   1,299.05/1,792.59 = 801.50/x
3. Step 3: Cross multiply
   1,299.05x = 1,792.59 × 801.50
4. Step 4: Simplify right side
   1,299.05x = 1,436,760.89
5. Step 5: Solve for x
   x = 1,436,760.89/1,299.05
6. Step 6: Final answer
   x = 1,106.01