Finding the Fourth Proportional to 1,068.22, 1,601.37 and 574.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.22 : 1,601.37 = 574.89 : x
2. Step 2: Convert to fraction form
   1,068.22/1,601.37 = 574.89/x
3. Step 3: Cross multiply
   1,068.22x = 1,601.37 × 574.89
4. Step 4: Simplify right side
   1,068.22x = 920,611.60
5. Step 5: Solve for x
   x = 920,611.60/1,068.22
6. Step 6: Final answer
   x = 861.82