Finding the Fourth Proportional to 2,454.86, 3,387.72 and 1,406.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.86 : 3,387.72 = 1,406.96 : x
2. Step 2: Convert to fraction form
   2,454.86/3,387.72 = 1,406.96/x
3. Step 3: Cross multiply
   2,454.86x = 3,387.72 × 1,406.96
4. Step 4: Simplify right side
   2,454.86x = 4,766,386.53
5. Step 5: Solve for x
   x = 4,766,386.53/2,454.86
6. Step 6: Final answer
   x = 1,941.61