Finding the Fourth Proportional to 2,100.94, 3,151.44 and 714.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.94 : 3,151.44 = 714.31 : x
2. Step 2: Convert to fraction form
   2,100.94/3,151.44 = 714.31/x
3. Step 3: Cross multiply
   2,100.94x = 3,151.44 × 714.31
4. Step 4: Simplify right side
   2,100.94x = 2,251,097.23
5. Step 5: Solve for x
   x = 2,251,097.23/2,100.94
6. Step 6: Final answer
   x = 1,071.47