Finding the Fourth Proportional to 2,218.50, 3,061.96 and 1,274.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.50 : 3,061.96 = 1,274.92 : x
2. Step 2: Convert to fraction form
   2,218.50/3,061.96 = 1,274.92/x
3. Step 3: Cross multiply
   2,218.50x = 3,061.96 × 1,274.92
4. Step 4: Simplify right side
   2,218.50x = 3,903,754.04
5. Step 5: Solve for x
   x = 3,903,754.04/2,218.50
6. Step 6: Final answer
   x = 1,759.64