Finding the Fourth Proportional to 2,538.32, 3,502.80 and 1,434.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.32 : 3,502.80 = 1,434.32 : x
2. Step 2: Convert to fraction form
   2,538.32/3,502.80 = 1,434.32/x
3. Step 3: Cross multiply
   2,538.32x = 3,502.80 × 1,434.32
4. Step 4: Simplify right side
   2,538.32x = 5,024,136.10
5. Step 5: Solve for x
   x = 5,024,136.10/2,538.32
6. Step 6: Final answer
   x = 1,979.32