Finding the Fourth Proportional to 1,052.76, 1,452.86 and 580.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.76 : 1,452.86 = 580.69 : x
2. Step 2: Convert to fraction form
   1,052.76/1,452.86 = 580.69/x
3. Step 3: Cross multiply
   1,052.76x = 1,452.86 × 580.69
4. Step 4: Simplify right side
   1,052.76x = 843,661.27
5. Step 5: Solve for x
   x = 843,661.27/1,052.76
6. Step 6: Final answer
   x = 801.38