Finding the Fourth Proportional to 1,152.05, 1,725.62 and 536.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.05 : 1,725.62 = 536.31 : x
2. Step 2: Convert to fraction form
   1,152.05/1,725.62 = 536.31/x
3. Step 3: Cross multiply
   1,152.05x = 1,725.62 × 536.31
4. Step 4: Simplify right side
   1,152.05x = 925,464.58
5. Step 5: Solve for x
   x = 925,464.58/1,152.05
6. Step 6: Final answer
   x = 803.32