Finding the Fourth Proportional to 2,100.79, 3,151.59 and 714.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.79 : 3,151.59 = 714.07 : x
2. Step 2: Convert to fraction form
   2,100.79/3,151.59 = 714.07/x
3. Step 3: Cross multiply
   2,100.79x = 3,151.59 × 714.07
4. Step 4: Simplify right side
   2,100.79x = 2,250,455.87
5. Step 5: Solve for x
   x = 2,250,455.87/2,100.79
6. Step 6: Final answer
   x = 1,071.24