Finding the Fourth Proportional to 2,499.45, 3,448.98 and 1,380.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.45 : 3,448.98 = 1,380.33 : x
2. Step 2: Convert to fraction form
   2,499.45/3,448.98 = 1,380.33/x
3. Step 3: Cross multiply
   2,499.45x = 3,448.98 × 1,380.33
4. Step 4: Simplify right side
   2,499.45x = 4,760,730.56
5. Step 5: Solve for x
   x = 4,760,730.56/2,499.45
6. Step 6: Final answer
   x = 1,904.71