Finding the Fourth Proportional to 2,218.19, 3,061.33 and 1,274.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.19 : 3,061.33 = 1,274.06 : x
2. Step 2: Convert to fraction form
   2,218.19/3,061.33 = 1,274.06/x
3. Step 3: Cross multiply
   2,218.19x = 3,061.33 × 1,274.06
4. Step 4: Simplify right side
   2,218.19x = 3,900,322.57
5. Step 5: Solve for x
   x = 3,900,322.57/2,218.19
6. Step 6: Final answer
   x = 1,758.34