Finding the Fourth Proportional to 1,660.42, 2,291.33 and 914.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,660.42 : 2,291.33 = 914.27 : x
2. Step 2: Convert to fraction form
   1,660.42/2,291.33 = 914.27/x
3. Step 3: Cross multiply
   1,660.42x = 2,291.33 × 914.27
4. Step 4: Simplify right side
   1,660.42x = 2,094,895.44
5. Step 5: Solve for x
   x = 2,094,895.44/1,660.42
6. Step 6: Final answer
   x = 1,261.67