Finding the Fourth Proportional to 2,211.61, 3,317.59 and 568.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.61 : 3,317.59 = 568.15 : x
2. Step 2: Convert to fraction form
   2,211.61/3,317.59 = 568.15/x
3. Step 3: Cross multiply
   2,211.61x = 3,317.59 × 568.15
4. Step 4: Simplify right side
   2,211.61x = 1,884,872.17
5. Step 5: Solve for x
   x = 1,884,872.17/2,211.61
6. Step 6: Final answer
   x = 852.26