Finding the Fourth Proportional to 1,571.98, 2,168.90 and 933.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.98 : 2,168.90 = 933.82 : x
2. Step 2: Convert to fraction form
   1,571.98/2,168.90 = 933.82/x
3. Step 3: Cross multiply
   1,571.98x = 2,168.90 × 933.82
4. Step 4: Simplify right side
   1,571.98x = 2,025,362.20
5. Step 5: Solve for x
   x = 2,025,362.20/1,571.98
6. Step 6: Final answer
   x = 1,288.41