Finding the Fourth Proportional to 2,106.22, 3,158.52 and 873.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.22 : 3,158.52 = 873.34 : x
2. Step 2: Convert to fraction form
   2,106.22/3,158.52 = 873.34/x
3. Step 3: Cross multiply
   2,106.22x = 3,158.52 × 873.34
4. Step 4: Simplify right side
   2,106.22x = 2,758,461.86
5. Step 5: Solve for x
   x = 2,758,461.86/2,106.22
6. Step 6: Final answer
   x = 1,309.67