Finding the Fourth Proportional to 2,502.64, 3,453.72 and 1,383.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,502.64 : 3,453.72 = 1,383.76 : x
2. Step 2: Convert to fraction form
   2,502.64/3,453.72 = 1,383.76/x
3. Step 3: Cross multiply
   2,502.64x = 3,453.72 × 1,383.76
4. Step 4: Simplify right side
   2,502.64x = 4,779,119.59
5. Step 5: Solve for x
   x = 4,779,119.59/2,502.64
6. Step 6: Final answer
   x = 1,909.63