Finding the Fourth Proportional to 1,025.16, 1,535.56 and 536.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.16 : 1,535.56 = 536.73 : x
2. Step 2: Convert to fraction form
   1,025.16/1,535.56 = 536.73/x
3. Step 3: Cross multiply
   1,025.16x = 1,535.56 × 536.73
4. Step 4: Simplify right side
   1,025.16x = 824,179.78
5. Step 5: Solve for x
   x = 824,179.78/1,025.16
6. Step 6: Final answer
   x = 803.95