Finding the Fourth Proportional to 2,470.82, 3,707.69 and 911.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.82 : 3,707.69 = 911.92 : x
2. Step 2: Convert to fraction form
   2,470.82/3,707.69 = 911.92/x
3. Step 3: Cross multiply
   2,470.82x = 3,707.69 × 911.92
4. Step 4: Simplify right side
   2,470.82x = 3,381,112.11
5. Step 5: Solve for x
   x = 3,381,112.11/2,470.82
6. Step 6: Final answer
   x = 1,368.42