Finding the Fourth Proportional to 2,906.10, 4,359.76 and 905.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906.10 : 4,359.76 = 905.00 : x
2. Step 2: Convert to fraction form
   2,906.10/4,359.76 = 905.00/x
3. Step 3: Cross multiply
   2,906.10x = 4,359.76 × 905.00
4. Step 4: Simplify right side
   2,906.10x = 3,945,558.74
5. Step 5: Solve for x
   x = 3,945,558.74/2,906.10
6. Step 6: Final answer
   x = 1,357.68