Finding the Fourth Proportional to 2,011.05, 3,011.90 and 1,955.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.05 : 3,011.90 = 1,955.69 : x
2. Step 2: Convert to fraction form
   2,011.05/3,011.90 = 1,955.69/x
3. Step 3: Cross multiply
   2,011.05x = 3,011.90 × 1,955.69
4. Step 4: Simplify right side
   2,011.05x = 5,890,317.87
5. Step 5: Solve for x
   x = 5,890,317.87/2,011.05
6. Step 6: Final answer
   x = 2,928.98