Finding the Fourth Proportional to 2,269.08, 3,131.02 and 1,274.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.08 : 3,131.02 = 1,274.35 : x
2. Step 2: Convert to fraction form
   2,269.08/3,131.02 = 1,274.35/x
3. Step 3: Cross multiply
   2,269.08x = 3,131.02 × 1,274.35
4. Step 4: Simplify right side
   2,269.08x = 3,990,015.34
5. Step 5: Solve for x
   x = 3,990,015.34/2,269.08
6. Step 6: Final answer
   x = 1,758.43