Finding the Fourth Proportional to 1,208.82, 1,812.96 and 591.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.82 : 1,812.96 = 591.91 : x
2. Step 2: Convert to fraction form
   1,208.82/1,812.96 = 591.91/x
3. Step 3: Cross multiply
   1,208.82x = 1,812.96 × 591.91
4. Step 4: Simplify right side
   1,208.82x = 1,073,109.15
5. Step 5: Solve for x
   x = 1,073,109.15/1,208.82
6. Step 6: Final answer
   x = 887.73