Finding the Fourth Proportional to 2,470.07, 3,706.56 and 911.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.07 : 3,706.56 = 911.17 : x
2. Step 2: Convert to fraction form
   2,470.07/3,706.56 = 911.17/x
3. Step 3: Cross multiply
   2,470.07x = 3,706.56 × 911.17
4. Step 4: Simplify right side
   2,470.07x = 3,377,306.28
5. Step 5: Solve for x
   x = 3,377,306.28/2,470.07
6. Step 6: Final answer
   x = 1,367.29