Finding the Fourth Proportional to 2,045.50, 3,066.82 and 1,121.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.50 : 3,066.82 = 1,121.49 : x
2. Step 2: Convert to fraction form
   2,045.50/3,066.82 = 1,121.49/x
3. Step 3: Cross multiply
   2,045.50x = 3,066.82 × 1,121.49
4. Step 4: Simplify right side
   2,045.50x = 3,439,405.16
5. Step 5: Solve for x
   x = 3,439,405.16/2,045.50
6. Step 6: Final answer
   x = 1,681.45