Finding the Fourth Proportional to 1,322.31, 1,982.25 and 591.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.31 : 1,982.25 = 591.48 : x
2. Step 2: Convert to fraction form
   1,322.31/1,982.25 = 591.48/x
3. Step 3: Cross multiply
   1,322.31x = 1,982.25 × 591.48
4. Step 4: Simplify right side
   1,322.31x = 1,172,461.23
5. Step 5: Solve for x
   x = 1,172,461.23/1,322.31
6. Step 6: Final answer
   x = 886.68