Finding the Fourth Proportional to 2,643.11, 3,952.52 and 1,942.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.11 : 3,952.52 = 1,942.47 : x
2. Step 2: Convert to fraction form
   2,643.11/3,952.52 = 1,942.47/x
3. Step 3: Cross multiply
   2,643.11x = 3,952.52 × 1,942.47
4. Step 4: Simplify right side
   2,643.11x = 7,677,641.81
5. Step 5: Solve for x
   x = 7,677,641.81/2,643.11
6. Step 6: Final answer
   x = 2,904.78