Finding the Fourth Proportional to 2,218.69, 3,061.92 and 1,334.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.69 : 3,061.92 = 1,334.80 : x
2. Step 2: Convert to fraction form
   2,218.69/3,061.92 = 1,334.80/x
3. Step 3: Cross multiply
   2,218.69x = 3,061.92 × 1,334.80
4. Step 4: Simplify right side
   2,218.69x = 4,087,050.82
5. Step 5: Solve for x
   x = 4,087,050.82/2,218.69
6. Step 6: Final answer
   x = 1,842.10