Finding the Fourth Proportional to 2,400.69, 3,312.98 and 1,338.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,400.69 : 3,312.98 = 1,338.42 : x
2. Step 2: Convert to fraction form
   2,400.69/3,312.98 = 1,338.42/x
3. Step 3: Cross multiply
   2,400.69x = 3,312.98 × 1,338.42
4. Step 4: Simplify right side
   2,400.69x = 4,434,158.69
5. Step 5: Solve for x
   x = 4,434,158.69/2,400.69
6. Step 6: Final answer
   x = 1,847.04