Finding the Fourth Proportional to 1,084.56, 1,625.72 and 535.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.56 : 1,625.72 = 535.76 : x
2. Step 2: Convert to fraction form
   1,084.56/1,625.72 = 535.76/x
3. Step 3: Cross multiply
   1,084.56x = 1,625.72 × 535.76
4. Step 4: Simplify right side
   1,084.56x = 870,995.75
5. Step 5: Solve for x
   x = 870,995.75/1,084.56
6. Step 6: Final answer
   x = 803.09