Finding the Fourth Proportional to 2,103.90, 3,153.15 and 1,614.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.90 : 3,153.15 = 1,614.53 : x
2. Step 2: Convert to fraction form
   2,103.90/3,153.15 = 1,614.53/x
3. Step 3: Cross multiply
   2,103.90x = 3,153.15 × 1,614.53
4. Step 4: Simplify right side
   2,103.90x = 5,090,839.50
5. Step 5: Solve for x
   x = 5,090,839.50/2,103.90
6. Step 6: Final answer
   x = 2,419.72