Finding the Fourth Proportional to 2,269.34, 3,131.76 and 1,274.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.34 : 3,131.76 = 1,274.59 : x
2. Step 2: Convert to fraction form
   2,269.34/3,131.76 = 1,274.59/x
3. Step 3: Cross multiply
   2,269.34x = 3,131.76 × 1,274.59
4. Step 4: Simplify right side
   2,269.34x = 3,991,709.98
5. Step 5: Solve for x
   x = 3,991,709.98/2,269.34
6. Step 6: Final answer
   x = 1,758.97