Finding the Fourth Proportional to 2,426.86, 3,349.12 and 1,378.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.86 : 3,349.12 = 1,378.82 : x
2. Step 2: Convert to fraction form
   2,426.86/3,349.12 = 1,378.82/x
3. Step 3: Cross multiply
   2,426.86x = 3,349.12 × 1,378.82
4. Step 4: Simplify right side
   2,426.86x = 4,617,833.64
5. Step 5: Solve for x
   x = 4,617,833.64/2,426.86
6. Step 6: Final answer
   x = 1,902.80