Finding the Fourth Proportional to 2,843.96, 3,925.87 and 1,913.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,843.96 : 3,925.87 = 1,913.00 : x
2. Step 2: Convert to fraction form
   2,843.96/3,925.87 = 1,913.00/x
3. Step 3: Cross multiply
   2,843.96x = 3,925.87 × 1,913.00
4. Step 4: Simplify right side
   2,843.96x = 7,510,164.90
5. Step 5: Solve for x
   x = 7,510,164.90/2,843.96
6. Step 6: Final answer
   x = 2,640.75