Finding the Fourth Proportional to 2,071.89, 3,106.85 and 754.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.89 : 3,106.85 = 754.71 : x
2. Step 2: Convert to fraction form
   2,071.89/3,106.85 = 754.71/x
3. Step 3: Cross multiply
   2,071.89x = 3,106.85 × 754.71
4. Step 4: Simplify right side
   2,071.89x = 2,344,766.99
5. Step 5: Solve for x
   x = 2,344,766.99/2,071.89
6. Step 6: Final answer
   x = 1,131.70