Finding the Fourth Proportional to 1,662.23, 2,494.22 and 1,271.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.23 : 2,494.22 = 1,271.99 : x
2. Step 2: Convert to fraction form
   1,662.23/2,494.22 = 1,271.99/x
3. Step 3: Cross multiply
   1,662.23x = 2,494.22 × 1,271.99
4. Step 4: Simplify right side
   1,662.23x = 3,172,604.07
5. Step 5: Solve for x
   x = 3,172,604.07/1,662.23
6. Step 6: Final answer
   x = 1,908.65