Finding the Fourth Proportional to 2,071.39, 3,106.10 and 754.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.39 : 3,106.10 = 754.21 : x
2. Step 2: Convert to fraction form
   2,071.39/3,106.10 = 754.21/x
3. Step 3: Cross multiply
   2,071.39x = 3,106.10 × 754.21
4. Step 4: Simplify right side
   2,071.39x = 2,342,653.57
5. Step 5: Solve for x
   x = 2,342,653.57/2,071.39
6. Step 6: Final answer
   x = 1,130.96