Finding the Fourth Proportional to 2,426.82, 3,348.72 and 1,378.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.82 : 3,348.72 = 1,378.86 : x
2. Step 2: Convert to fraction form
   2,426.82/3,348.72 = 1,378.86/x
3. Step 3: Cross multiply
   2,426.82x = 3,348.72 × 1,378.86
4. Step 4: Simplify right side
   2,426.82x = 4,617,416.06
5. Step 5: Solve for x
   x = 4,617,416.06/2,426.82
6. Step 6: Final answer
   x = 1,902.66