Finding the Fourth Proportional to 2,623.84, 3,932.82 and 1,322.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.84 : 3,932.82 = 1,322.57 : x
2. Step 2: Convert to fraction form
   2,623.84/3,932.82 = 1,322.57/x
3. Step 3: Cross multiply
   2,623.84x = 3,932.82 × 1,322.57
4. Step 4: Simplify right side
   2,623.84x = 5,201,429.75
5. Step 5: Solve for x
   x = 5,201,429.75/2,623.84
6. Step 6: Final answer
   x = 1,982.37