Finding the Fourth Proportional to 2,479.59, 3,421.82 and 1,432.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.59 : 3,421.82 = 1,432.23 : x
2. Step 2: Convert to fraction form
   2,479.59/3,421.82 = 1,432.23/x
3. Step 3: Cross multiply
   2,479.59x = 3,421.82 × 1,432.23
4. Step 4: Simplify right side
   2,479.59x = 4,900,826.10
5. Step 5: Solve for x
   x = 4,900,826.10/2,479.59
6. Step 6: Final answer
   x = 1,976.47