Finding the Fourth Proportional to 2,613.24, 3,919.83 and 1,314.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.24 : 3,919.83 = 1,314.42 : x
2. Step 2: Convert to fraction form
   2,613.24/3,919.83 = 1,314.42/x
3. Step 3: Cross multiply
   2,613.24x = 3,919.83 × 1,314.42
4. Step 4: Simplify right side
   2,613.24x = 5,152,302.95
5. Step 5: Solve for x
   x = 5,152,302.95/2,613.24
6. Step 6: Final answer
   x = 1,971.61