Finding the Fourth Proportional to 1,150.77, 1,725.86 and 533.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.77 : 1,725.86 = 533.88 : x
2. Step 2: Convert to fraction form
   1,150.77/1,725.86 = 533.88/x
3. Step 3: Cross multiply
   1,150.77x = 1,725.86 × 533.88
4. Step 4: Simplify right side
   1,150.77x = 921,399.47
5. Step 5: Solve for x
   x = 921,399.47/1,150.77
6. Step 6: Final answer
   x = 800.68