Finding the Fourth Proportional to 2,840.96, 3,921.73 and 1,910.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840.96 : 3,921.73 = 1,910.00 : x
2. Step 2: Convert to fraction form
   2,840.96/3,921.73 = 1,910.00/x
3. Step 3: Cross multiply
   2,840.96x = 3,921.73 × 1,910.00
4. Step 4: Simplify right side
   2,840.96x = 7,490,479.92
5. Step 5: Solve for x
   x = 7,490,479.92/2,840.96
6. Step 6: Final answer
   x = 2,636.61