Finding the Fourth Proportional to 2,218.58, 3,061.59 and 1,274.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.58 : 3,061.59 = 1,274.37 : x
2. Step 2: Convert to fraction form
   2,218.58/3,061.59 = 1,274.37/x
3. Step 3: Cross multiply
   2,218.58x = 3,061.59 × 1,274.37
4. Step 4: Simplify right side
   2,218.58x = 3,901,598.45
5. Step 5: Solve for x
   x = 3,901,598.45/2,218.58
6. Step 6: Final answer
   x = 1,758.61