Finding the Fourth Proportional to 1,662.71, 2,294.47 and 906.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.71 : 2,294.47 = 906.48 : x
2. Step 2: Convert to fraction form
   1,662.71/2,294.47 = 906.48/x
3. Step 3: Cross multiply
   1,662.71x = 2,294.47 × 906.48
4. Step 4: Simplify right side
   1,662.71x = 2,079,889.40
5. Step 5: Solve for x
   x = 2,079,889.40/1,662.71
6. Step 6: Final answer
   x = 1,250.90