Finding the Fourth Proportional to 1,391.24, 1,918.33 and 1,041.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391.24 : 1,918.33 = 1,041.32 : x
2. Step 2: Convert to fraction form
   1,391.24/1,918.33 = 1,041.32/x
3. Step 3: Cross multiply
   1,391.24x = 1,918.33 × 1,041.32
4. Step 4: Simplify right side
   1,391.24x = 1,997,583.20
5. Step 5: Solve for x
   x = 1,997,583.20/1,391.24
6. Step 6: Final answer
   x = 1,435.83