Finding the Fourth Proportional to 2,470.37, 3,707.02 and 911.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.37 : 3,707.02 = 911.47 : x
2. Step 2: Convert to fraction form
   2,470.37/3,707.02 = 911.47/x
3. Step 3: Cross multiply
   2,470.37x = 3,707.02 × 911.47
4. Step 4: Simplify right side
   2,470.37x = 3,378,837.52
5. Step 5: Solve for x
   x = 3,378,837.52/2,470.37
6. Step 6: Final answer
   x = 1,367.75