Finding the Fourth Proportional to 2,426.46, 3,348.32 and 1,431.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.46 : 3,348.32 = 1,431.78 : x
2. Step 2: Convert to fraction form
   2,426.46/3,348.32 = 1,431.78/x
3. Step 3: Cross multiply
   2,426.46x = 3,348.32 × 1,431.78
4. Step 4: Simplify right side
   2,426.46x = 4,794,050.45
5. Step 5: Solve for x
   x = 4,794,050.45/2,426.46
6. Step 6: Final answer
   x = 1,975.74