Finding the Fourth Proportional to 1,433.57, 2,150.82 and 611.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.57 : 2,150.82 = 611.82 : x
2. Step 2: Convert to fraction form
   1,433.57/2,150.82 = 611.82/x
3. Step 3: Cross multiply
   1,433.57x = 2,150.82 × 611.82
4. Step 4: Simplify right side
   1,433.57x = 1,315,914.69
5. Step 5: Solve for x
   x = 1,315,914.69/1,433.57
6. Step 6: Final answer
   x = 917.93