Finding the Fourth Proportional to 2,218.18, 3,061.38 and 1,434.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.18 : 3,061.38 = 1,434.52 : x
2. Step 2: Convert to fraction form
   2,218.18/3,061.38 = 1,434.52/x
3. Step 3: Cross multiply
   2,218.18x = 3,061.38 × 1,434.52
4. Step 4: Simplify right side
   2,218.18x = 4,391,610.84
5. Step 5: Solve for x
   x = 4,391,610.84/2,218.18
6. Step 6: Final answer
   x = 1,979.83