Finding the Fourth Proportional to 2,385.22, 3,288.15 and 1,674.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.22 : 3,288.15 = 1,674.90 : x
2. Step 2: Convert to fraction form
   2,385.22/3,288.15 = 1,674.90/x
3. Step 3: Cross multiply
   2,385.22x = 3,288.15 × 1,674.90
4. Step 4: Simplify right side
   2,385.22x = 5,507,322.44
5. Step 5: Solve for x
   x = 5,507,322.44/2,385.22
6. Step 6: Final answer
   x = 2,308.94