Finding the Fourth Proportional to 2,665.82, 3,999.54 and 1,612.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.82 : 3,999.54 = 1,612.82 : x
2. Step 2: Convert to fraction form
   2,665.82/3,999.54 = 1,612.82/x
3. Step 3: Cross multiply
   2,665.82x = 3,999.54 × 1,612.82
4. Step 4: Simplify right side
   2,665.82x = 6,450,538.10
5. Step 5: Solve for x
   x = 6,450,538.10/2,665.82
6. Step 6: Final answer
   x = 2,419.72