Finding the Fourth Proportional to 2,399.35, 3,310.86 and 1,770.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.35 : 3,310.86 = 1,770.22 : x
2. Step 2: Convert to fraction form
   2,399.35/3,310.86 = 1,770.22/x
3. Step 3: Cross multiply
   2,399.35x = 3,310.86 × 1,770.22
4. Step 4: Simplify right side
   2,399.35x = 5,860,950.59
5. Step 5: Solve for x
   x = 5,860,950.59/2,399.35
6. Step 6: Final answer
   x = 2,442.72