Finding the Fourth Proportional to 2,100.86, 3,150.46 and 713.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.86 : 3,150.46 = 713.94 : x
2. Step 2: Convert to fraction form
   2,100.86/3,150.46 = 713.94/x
3. Step 3: Cross multiply
   2,100.86x = 3,150.46 × 713.94
4. Step 4: Simplify right side
   2,100.86x = 2,249,239.41
5. Step 5: Solve for x
   x = 2,249,239.41/2,100.86
6. Step 6: Final answer
   x = 1,070.63