Finding the Fourth Proportional to 2,491.86, 3,738.18 and 1,945.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.86 : 3,738.18 = 1,945.08 : x
2. Step 2: Convert to fraction form
   2,491.86/3,738.18 = 1,945.08/x
3. Step 3: Cross multiply
   2,491.86x = 3,738.18 × 1,945.08
4. Step 4: Simplify right side
   2,491.86x = 7,271,059.15
5. Step 5: Solve for x
   x = 7,271,059.15/2,491.86
6. Step 6: Final answer
   x = 2,917.92