Finding the Fourth Proportional to 1,614.69, 2,228.32 and 906.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,614.69 : 2,228.32 = 906.59 : x
2. Step 2: Convert to fraction form
   1,614.69/2,228.32 = 906.59/x
3. Step 3: Cross multiply
   1,614.69x = 2,228.32 × 906.59
4. Step 4: Simplify right side
   1,614.69x = 2,020,176.78
5. Step 5: Solve for x
   x = 2,020,176.78/1,614.69
6. Step 6: Final answer
   x = 1,251.12