Finding the Fourth Proportional to 2,062.10, 3,089.10 and 1,916.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.10 : 3,089.10 = 1,916.30 : x
2. Step 2: Convert to fraction form
   2,062.10/3,089.10 = 1,916.30/x
3. Step 3: Cross multiply
   2,062.10x = 3,089.10 × 1,916.30
4. Step 4: Simplify right side
   2,062.10x = 5,919,642.33
5. Step 5: Solve for x
   x = 5,919,642.33/2,062.10
6. Step 6: Final answer
   x = 2,870.69