Finding the Fourth Proportional to 2,322.52, 3,205.18 and 1,391

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.52 : 3,205.18 = 1,391 : x
2. Step 2: Convert to fraction form
   2,322.52/3,205.18 = 1,391/x
3. Step 3: Cross multiply
   2,322.52x = 3,205.18 × 1,391
4. Step 4: Simplify right side
   2,322.52x = 4,458,405.38
5. Step 5: Solve for x
   x = 4,458,405.38/2,322.52
6. Step 6: Final answer
   x = 1,919.64