Finding the Fourth Proportional to 2,110.42, 2,912.56 and 1,166.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,110.42 : 2,912.56 = 1,166.30 : x
2. Step 2: Convert to fraction form
   2,110.42/2,912.56 = 1,166.30/x
3. Step 3: Cross multiply
   2,110.42x = 2,912.56 × 1,166.30
4. Step 4: Simplify right side
   2,110.42x = 3,396,912.17
5. Step 5: Solve for x
   x = 3,396,912.17/2,110.42
6. Step 6: Final answer
   x = 1,609.59