Finding the Fourth Proportional to 2,449.50, 3,380.46 and 1,387.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.50 : 3,380.46 = 1,387.37 : x
2. Step 2: Convert to fraction form
   2,449.50/3,380.46 = 1,387.37/x
3. Step 3: Cross multiply
   2,449.50x = 3,380.46 × 1,387.37
4. Step 4: Simplify right side
   2,449.50x = 4,689,931.89
5. Step 5: Solve for x
   x = 4,689,931.89/2,449.50
6. Step 6: Final answer
   x = 1,914.65