Finding the Fourth Proportional to 2,102.18, 3,149.15 and 1,612.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.18 : 3,149.15 = 1,612.83 : x
2. Step 2: Convert to fraction form
   2,102.18/3,149.15 = 1,612.83/x
3. Step 3: Cross multiply
   2,102.18x = 3,149.15 × 1,612.83
4. Step 4: Simplify right side
   2,102.18x = 5,079,035.53
5. Step 5: Solve for x
   x = 5,079,035.53/2,102.18
6. Step 6: Final answer
   x = 2,416.09