Finding the Fourth Proportional to 2,901.78, 4,007.76 and 1,955.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,901.78 : 4,007.76 = 1,955.94 : x
2. Step 2: Convert to fraction form
   2,901.78/4,007.76 = 1,955.94/x
3. Step 3: Cross multiply
   2,901.78x = 4,007.76 × 1,955.94
4. Step 4: Simplify right side
   2,901.78x = 7,838,938.27
5. Step 5: Solve for x
   x = 7,838,938.27/2,901.78
6. Step 6: Final answer
   x = 2,701.42