Finding the Fourth Proportional to 1,093.74, 1,639.23 and 573.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.74 : 1,639.23 = 573.47 : x
2. Step 2: Convert to fraction form
   1,093.74/1,639.23 = 573.47/x
3. Step 3: Cross multiply
   1,093.74x = 1,639.23 × 573.47
4. Step 4: Simplify right side
   1,093.74x = 940,041.03
5. Step 5: Solve for x
   x = 940,041.03/1,093.74
6. Step 6: Final answer
   x = 859.47