Finding the Fourth Proportional to 2,045.62, 3,061.11 and 1,908.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.62 : 3,061.11 = 1,908.31 : x
2. Step 2: Convert to fraction form
   2,045.62/3,061.11 = 1,908.31/x
3. Step 3: Cross multiply
   2,045.62x = 3,061.11 × 1,908.31
4. Step 4: Simplify right side
   2,045.62x = 5,841,546.82
5. Step 5: Solve for x
   x = 5,841,546.82/2,045.62
6. Step 6: Final answer
   x = 2,855.64