Finding the Fourth Proportional to 3,826.49, 5,278.32 and 2,407.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826.49 : 5,278.32 = 2,407.94 : x
2. Step 2: Convert to fraction form
   3,826.49/5,278.32 = 2,407.94/x
3. Step 3: Cross multiply
   3,826.49x = 5,278.32 × 2,407.94
4. Step 4: Simplify right side
   3,826.49x = 12,709,877.86
5. Step 5: Solve for x
   x = 12,709,877.86/3,826.49
6. Step 6: Final answer
   x = 3,321.55