Finding the Fourth Proportional to 1,153.83, 1,593.79 and 933.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.83 : 1,593.79 = 933.61 : x
2. Step 2: Convert to fraction form
   1,153.83/1,593.79 = 933.61/x
3. Step 3: Cross multiply
   1,153.83x = 1,593.79 × 933.61
4. Step 4: Simplify right side
   1,153.83x = 1,487,978.28
5. Step 5: Solve for x
   x = 1,487,978.28/1,153.83
6. Step 6: Final answer
   x = 1,289.60