Finding the Fourth Proportional to 2,166.31, 3,249.37 and 1,070.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.31 : 3,249.37 = 1,070.34 : x
2. Step 2: Convert to fraction form
   2,166.31/3,249.37 = 1,070.34/x
3. Step 3: Cross multiply
   2,166.31x = 3,249.37 × 1,070.34
4. Step 4: Simplify right side
   2,166.31x = 3,477,930.69
5. Step 5: Solve for x
   x = 3,477,930.69/2,166.31
6. Step 6: Final answer
   x = 1,605.46