Finding the Fourth Proportional to 2,470.84, 3,707.88 and 910.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.84 : 3,707.88 = 910.86 : x
2. Step 2: Convert to fraction form
   2,470.84/3,707.88 = 910.86/x
3. Step 3: Cross multiply
   2,470.84x = 3,707.88 × 910.86
4. Step 4: Simplify right side
   2,470.84x = 3,377,359.58
5. Step 5: Solve for x
   x = 3,377,359.58/2,470.84
6. Step 6: Final answer
   x = 1,366.89