Finding the Fourth Proportional to 1,081.92, 1,624.32 and 569.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.92 : 1,624.32 = 569.28 : x
2. Step 2: Convert to fraction form
   1,081.92/1,624.32 = 569.28/x
3. Step 3: Cross multiply
   1,081.92x = 1,624.32 × 569.28
4. Step 4: Simplify right side
   1,081.92x = 924,692.89
5. Step 5: Solve for x
   x = 924,692.89/1,081.92
6. Step 6: Final answer
   x = 854.68