Finding the Fourth Proportional to 2,470.68, 3,706.61 and 911.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.68 : 3,706.61 = 911.52 : x
2. Step 2: Convert to fraction form
   2,470.68/3,706.61 = 911.52/x
3. Step 3: Cross multiply
   2,470.68x = 3,706.61 × 911.52
4. Step 4: Simplify right side
   2,470.68x = 3,378,644.59
5. Step 5: Solve for x
   x = 3,378,644.59/2,470.68
6. Step 6: Final answer
   x = 1,367.50