Finding the Fourth Proportional to 2,109.67, 3,166.44 and 1,070.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.67 : 3,166.44 = 1,070.39 : x
2. Step 2: Convert to fraction form
   2,109.67/3,166.44 = 1,070.39/x
3. Step 3: Cross multiply
   2,109.67x = 3,166.44 × 1,070.39
4. Step 4: Simplify right side
   2,109.67x = 3,389,323.04
5. Step 5: Solve for x
   x = 3,389,323.04/2,109.67
6. Step 6: Final answer
   x = 1,606.56