Finding the Fourth Proportional to 1,208.16, 1,809.72 and 591.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.16 : 1,809.72 = 591.48 : x
2. Step 2: Convert to fraction form
   1,208.16/1,809.72 = 591.48/x
3. Step 3: Cross multiply
   1,208.16x = 1,809.72 × 591.48
4. Step 4: Simplify right side
   1,208.16x = 1,070,413.19
5. Step 5: Solve for x
   x = 1,070,413.19/1,208.16
6. Step 6: Final answer
   x = 885.99