Finding the Fourth Proportional to 1,615.83, 2,418.27 and 1,342.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.83 : 2,418.27 = 1,342.45 : x
2. Step 2: Convert to fraction form
   1,615.83/2,418.27 = 1,342.45/x
3. Step 3: Cross multiply
   1,615.83x = 2,418.27 × 1,342.45
4. Step 4: Simplify right side
   1,615.83x = 3,246,406.56
5. Step 5: Solve for x
   x = 3,246,406.56/1,615.83
6. Step 6: Final answer
   x = 2,009.13