Finding the Fourth Proportional to 2,103.45, 2,900.25 and 1,440.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.45 : 2,900.25 = 1,440.87 : x
2. Step 2: Convert to fraction form
   2,103.45/2,900.25 = 1,440.87/x
3. Step 3: Cross multiply
   2,103.45x = 2,900.25 × 1,440.87
4. Step 4: Simplify right side
   2,103.45x = 4,178,883.22
5. Step 5: Solve for x
   x = 4,178,883.22/2,103.45
6. Step 6: Final answer
   x = 1,986.68