Finding the Fourth Proportional to 2,012.94, 3,019.06 and 917.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.94 : 3,019.06 = 917.04 : x
2. Step 2: Convert to fraction form
   2,012.94/3,019.06 = 917.04/x
3. Step 3: Cross multiply
   2,012.94x = 3,019.06 × 917.04
4. Step 4: Simplify right side
   2,012.94x = 2,768,598.78
5. Step 5: Solve for x
   x = 2,768,598.78/2,012.94
6. Step 6: Final answer
   x = 1,375.40