Finding the Fourth Proportional to 2,010.80, 2,995.12 and 1,916.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.80 : 2,995.12 = 1,916.03 : x
2. Step 2: Convert to fraction form
   2,010.80/2,995.12 = 1,916.03/x
3. Step 3: Cross multiply
   2,010.80x = 2,995.12 × 1,916.03
4. Step 4: Simplify right side
   2,010.80x = 5,738,739.77
5. Step 5: Solve for x
   x = 5,738,739.77/2,010.80
6. Step 6: Final answer
   x = 2,853.96