Finding the Fourth Proportional to 2,407.31, 3,324.83 and 1,619.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.31 : 3,324.83 = 1,619.99 : x
2. Step 2: Convert to fraction form
   2,407.31/3,324.83 = 1,619.99/x
3. Step 3: Cross multiply
   2,407.31x = 3,324.83 × 1,619.99
4. Step 4: Simplify right side
   2,407.31x = 5,386,191.35
5. Step 5: Solve for x
   x = 5,386,191.35/2,407.31
6. Step 6: Final answer
   x = 2,237.43