Finding the Fourth Proportional to 2,429.58, 3,642.51 and 1,605.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.58 : 3,642.51 = 1,605.81 : x
2. Step 2: Convert to fraction form
   2,429.58/3,642.51 = 1,605.81/x
3. Step 3: Cross multiply
   2,429.58x = 3,642.51 × 1,605.81
4. Step 4: Simplify right side
   2,429.58x = 5,849,178.98
5. Step 5: Solve for x
   x = 5,849,178.98/2,429.58
6. Step 6: Final answer
   x = 2,407.49