Finding the Fourth Proportional to 2,448.83, 3,379.33 and 1,386.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.83 : 3,379.33 = 1,386.51 : x
2. Step 2: Convert to fraction form
   2,448.83/3,379.33 = 1,386.51/x
3. Step 3: Cross multiply
   2,448.83x = 3,379.33 × 1,386.51
4. Step 4: Simplify right side
   2,448.83x = 4,685,476.57
5. Step 5: Solve for x
   x = 4,685,476.57/2,448.83
6. Step 6: Final answer
   x = 1,913.36