Finding the Fourth Proportional to 2,109.69, 3,163.77 and 703.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.69 : 3,163.77 = 703.86 : x
2. Step 2: Convert to fraction form
   2,109.69/3,163.77 = 703.86/x
3. Step 3: Cross multiply
   2,109.69x = 3,163.77 × 703.86
4. Step 4: Simplify right side
   2,109.69x = 2,226,851.15
5. Step 5: Solve for x
   x = 2,226,851.15/2,109.69
6. Step 6: Final answer
   x = 1,055.53