Finding the Fourth Proportional to 2,953.10, 4,050.86 and 2,891.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.10 : 4,050.86 = 2,891.59 : x
2. Step 2: Convert to fraction form
   2,953.10/4,050.86 = 2,891.59/x
3. Step 3: Cross multiply
   2,953.10x = 4,050.86 × 2,891.59
4. Step 4: Simplify right side
   2,953.10x = 11,713,401.68
5. Step 5: Solve for x
   x = 11,713,401.68/2,953.10
6. Step 6: Final answer
   x = 3,966.47