Finding the Fourth Proportional to 2,981.95, 4,112.57 and 2,940.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.95 : 4,112.57 = 2,940.94 : x
2. Step 2: Convert to fraction form
   2,981.95/4,112.57 = 2,940.94/x
3. Step 3: Cross multiply
   2,981.95x = 4,112.57 × 2,940.94
4. Step 4: Simplify right side
   2,981.95x = 12,094,834.11
5. Step 5: Solve for x
   x = 12,094,834.11/2,981.95
6. Step 6: Final answer
   x = 4,056.02