Finding the Fourth Proportional to 2,045.82, 3,069.19 and 1,120.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.82 : 3,069.19 = 1,120.91 : x
2. Step 2: Convert to fraction form
   2,045.82/3,069.19 = 1,120.91/x
3. Step 3: Cross multiply
   2,045.82x = 3,069.19 × 1,120.91
4. Step 4: Simplify right side
   2,045.82x = 3,440,270.42
5. Step 5: Solve for x
   x = 3,440,270.42/2,045.82
6. Step 6: Final answer
   x = 1,681.61