Finding the Fourth Proportional to 2,080.45, 3,118.27 and 910.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.45 : 3,118.27 = 910.07 : x
2. Step 2: Convert to fraction form
   2,080.45/3,118.27 = 910.07/x
3. Step 3: Cross multiply
   2,080.45x = 3,118.27 × 910.07
4. Step 4: Simplify right side
   2,080.45x = 2,837,843.98
5. Step 5: Solve for x
   x = 2,837,843.98/2,080.45
6. Step 6: Final answer
   x = 1,364.05