Finding the Fourth Proportional to 2,538.48, 3,502.20 and 1,434.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.48 : 3,502.20 = 1,434.48 : x
2. Step 2: Convert to fraction form
   2,538.48/3,502.20 = 1,434.48/x
3. Step 3: Cross multiply
   2,538.48x = 3,502.20 × 1,434.48
4. Step 4: Simplify right side
   2,538.48x = 5,023,835.86
5. Step 5: Solve for x
   x = 5,023,835.86/2,538.48
6. Step 6: Final answer
   x = 1,979.07