Finding the Fourth Proportional to 2,942.45, 4,061.29 and 1,822.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.45 : 4,061.29 = 1,822.71 : x
2. Step 2: Convert to fraction form
   2,942.45/4,061.29 = 1,822.71/x
3. Step 3: Cross multiply
   2,942.45x = 4,061.29 × 1,822.71
4. Step 4: Simplify right side
   2,942.45x = 7,402,553.90
5. Step 5: Solve for x
   x = 7,402,553.90/2,942.45
6. Step 6: Final answer
   x = 2,515.78