Finding the Fourth Proportional to 2,071.05, 2,855.27 and 1,406.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.05 : 2,855.27 = 1,406.75 : x
2. Step 2: Convert to fraction form
   2,071.05/2,855.27 = 1,406.75/x
3. Step 3: Cross multiply
   2,071.05x = 2,855.27 × 1,406.75
4. Step 4: Simplify right side
   2,071.05x = 4,016,648.46
5. Step 5: Solve for x
   x = 4,016,648.46/2,071.05
6. Step 6: Final answer
   x = 1,939.42