Finding the Fourth Proportional to 2,071.51, 3,106.15 and 754.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.51 : 3,106.15 = 754.85 : x
2. Step 2: Convert to fraction form
   2,071.51/3,106.15 = 754.85/x
3. Step 3: Cross multiply
   2,071.51x = 3,106.15 × 754.85
4. Step 4: Simplify right side
   2,071.51x = 2,344,683.21
5. Step 5: Solve for x
   x = 2,344,683.21/2,071.51
6. Step 6: Final answer
   x = 1,131.87