Finding the Fourth Proportional to 2,614.29, 3,919.84 and 1,111.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.29 : 3,919.84 = 1,111.53 : x
2. Step 2: Convert to fraction form
   2,614.29/3,919.84 = 1,111.53/x
3. Step 3: Cross multiply
   2,614.29x = 3,919.84 × 1,111.53
4. Step 4: Simplify right side
   2,614.29x = 4,357,019.76
5. Step 5: Solve for x
   x = 4,357,019.76/2,614.29
6. Step 6: Final answer
   x = 1,666.62