Finding the Fourth Proportional to 1,045.87, 1,443.33 and 573.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.87 : 1,443.33 = 573.74 : x
2. Step 2: Convert to fraction form
   1,045.87/1,443.33 = 573.74/x
3. Step 3: Cross multiply
   1,045.87x = 1,443.33 × 573.74
4. Step 4: Simplify right side
   1,045.87x = 828,096.15
5. Step 5: Solve for x
   x = 828,096.15/1,045.87
6. Step 6: Final answer
   x = 791.78