Finding the Fourth Proportional to 2,399.56, 3,312.54 and 1,604.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.56 : 3,312.54 = 1,604.26 : x
2. Step 2: Convert to fraction form
   2,399.56/3,312.54 = 1,604.26/x
3. Step 3: Cross multiply
   2,399.56x = 3,312.54 × 1,604.26
4. Step 4: Simplify right side
   2,399.56x = 5,314,175.42
5. Step 5: Solve for x
   x = 5,314,175.42/2,399.56
6. Step 6: Final answer
   x = 2,214.65