Finding the Fourth Proportional to 1,912.32, 2,639.46 and 1,166.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.32 : 2,639.46 = 1,166.34 : x
2. Step 2: Convert to fraction form
   1,912.32/2,639.46 = 1,166.34/x
3. Step 3: Cross multiply
   1,912.32x = 2,639.46 × 1,166.34
4. Step 4: Simplify right side
   1,912.32x = 3,078,507.78
5. Step 5: Solve for x
   x = 3,078,507.78/1,912.32
6. Step 6: Final answer
   x = 1,609.83