Finding the Fourth Proportional to 1,040.34, 1,435.69 and 574.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.34 : 1,435.69 = 574.59 : x
2. Step 2: Convert to fraction form
   1,040.34/1,435.69 = 574.59/x
3. Step 3: Cross multiply
   1,040.34x = 1,435.69 × 574.59
4. Step 4: Simplify right side
   1,040.34x = 824,939.22
5. Step 5: Solve for x
   x = 824,939.22/1,040.34
6. Step 6: Final answer
   x = 792.95