Finding the Fourth Proportional to 2,399.49, 3,312.23 and 1,875.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.49 : 3,312.23 = 1,875.69 : x
2. Step 2: Convert to fraction form
   2,399.49/3,312.23 = 1,875.69/x
3. Step 3: Cross multiply
   2,399.49x = 3,312.23 × 1,875.69
4. Step 4: Simplify right side
   2,399.49x = 6,212,707.31
5. Step 5: Solve for x
   x = 6,212,707.31/2,399.49
6. Step 6: Final answer
   x = 2,589.18