Finding the Fourth Proportional to 2,426.42, 3,348.34 and 1,378.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.42 : 3,348.34 = 1,378.46 : x
2. Step 2: Convert to fraction form
   2,426.42/3,348.34 = 1,378.46/x
3. Step 3: Cross multiply
   2,426.42x = 3,348.34 × 1,378.46
4. Step 4: Simplify right side
   2,426.42x = 4,615,532.57
5. Step 5: Solve for x
   x = 4,615,532.57/2,426.42
6. Step 6: Final answer
   x = 1,902.20