Finding the Fourth Proportional to 2,426.45, 3,348.59 and 1,378.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.45 : 3,348.59 = 1,378.50 : x
2. Step 2: Convert to fraction form
   2,426.45/3,348.59 = 1,378.50/x
3. Step 3: Cross multiply
   2,426.45x = 3,348.59 × 1,378.50
4. Step 4: Simplify right side
   2,426.45x = 4,616,024.42
5. Step 5: Solve for x
   x = 4,616,024.42/2,426.45
6. Step 6: Final answer
   x = 1,902.38