Finding the Fourth Proportional to 1,668.48, 2,302.47 and 922.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668.48 : 2,302.47 = 922.43 : x
2. Step 2: Convert to fraction form
   1,668.48/2,302.47 = 922.43/x
3. Step 3: Cross multiply
   1,668.48x = 2,302.47 × 922.43
4. Step 4: Simplify right side
   1,668.48x = 2,123,855.89
5. Step 5: Solve for x
   x = 2,123,855.89/1,668.48
6. Step 6: Final answer
   x = 1,272.93