Finding the Fourth Proportional to 2,448.01, 3,378.27 and 1,385.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.01 : 3,378.27 = 1,385.83 : x
2. Step 2: Convert to fraction form
   2,448.01/3,378.27 = 1,385.83/x
3. Step 3: Cross multiply
   2,448.01x = 3,378.27 × 1,385.83
4. Step 4: Simplify right side
   2,448.01x = 4,681,707.91
5. Step 5: Solve for x
   x = 4,681,707.91/2,448.01
6. Step 6: Final answer
   x = 1,912.45