Finding the Fourth Proportional to 2,502.65, 3,453.69 and 1,383.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,502.65 : 3,453.69 = 1,383.57 : x
2. Step 2: Convert to fraction form
   2,502.65/3,453.69 = 1,383.57/x
3. Step 3: Cross multiply
   2,502.65x = 3,453.69 × 1,383.57
4. Step 4: Simplify right side
   2,502.65x = 4,778,421.87
5. Step 5: Solve for x
   x = 4,778,421.87/2,502.65
6. Step 6: Final answer
   x = 1,909.35