Finding the Fourth Proportional to 2,433.70, 3,642.45 and 2,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.70 : 3,642.45 = 2,142.10 : x
2. Step 2: Convert to fraction form
   2,433.70/3,642.45 = 2,142.10/x
3. Step 3: Cross multiply
   2,433.70x = 3,642.45 × 2,142.10
4. Step 4: Simplify right side
   2,433.70x = 7,802,492.15
5. Step 5: Solve for x
   x = 7,802,492.15/2,433.70
6. Step 6: Final answer
   x = 3,206.02