Finding the Fourth Proportional to 1,019.78, 1,529.97 and 532.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.78 : 1,529.97 = 532.56 : x
2. Step 2: Convert to fraction form
   1,019.78/1,529.97 = 532.56/x
3. Step 3: Cross multiply
   1,019.78x = 1,529.97 × 532.56
4. Step 4: Simplify right side
   1,019.78x = 814,800.82
5. Step 5: Solve for x
   x = 814,800.82/1,019.78
6. Step 6: Final answer
   x = 799.00