Finding the Fourth Proportional to 2,425.79, 3,348.47 and 1,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.79 : 3,348.47 = 1,431.52 : x
2. Step 2: Convert to fraction form
   2,425.79/3,348.47 = 1,431.52/x
3. Step 3: Cross multiply
   2,425.79x = 3,348.47 × 1,431.52
4. Step 4: Simplify right side
   2,425.79x = 4,793,401.77
5. Step 5: Solve for x
   x = 4,793,401.77/2,425.79
6. Step 6: Final answer
   x = 1,976.02