Finding the Fourth Proportional to 2,079.79, 3,120.59 and 910.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.79 : 3,120.59 = 910.04 : x
2. Step 2: Convert to fraction form
   2,079.79/3,120.59 = 910.04/x
3. Step 3: Cross multiply
   2,079.79x = 3,120.59 × 910.04
4. Step 4: Simplify right side
   2,079.79x = 2,839,861.72
5. Step 5: Solve for x
   x = 2,839,861.72/2,079.79
6. Step 6: Final answer
   x = 1,365.46