Finding the Fourth Proportional to 1,322.31, 1,982.94 and 591.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.31 : 1,982.94 = 591.39 : x
2. Step 2: Convert to fraction form
   1,322.31/1,982.94 = 591.39/x
3. Step 3: Cross multiply
   1,322.31x = 1,982.94 × 591.39
4. Step 4: Simplify right side
   1,322.31x = 1,172,690.89
5. Step 5: Solve for x
   x = 1,172,690.89/1,322.31
6. Step 6: Final answer
   x = 886.85