Finding the Fourth Proportional to 2,150.00, 3,207.69 and 1,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.00 : 3,207.69 = 1,916.10 : x
2. Step 2: Convert to fraction form
   2,150.00/3,207.69 = 1,916.10/x
3. Step 3: Cross multiply
   2,150.00x = 3,207.69 × 1,916.10
4. Step 4: Simplify right side
   2,150.00x = 6,146,254.81
5. Step 5: Solve for x
   x = 6,146,254.81/2,150.00
6. Step 6: Final answer
   x = 2,858.73