Finding the Fourth Proportional to 2,454.78, 3,387.72 and 1,406.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.78 : 3,387.72 = 1,406.84 : x
2. Step 2: Convert to fraction form
   2,454.78/3,387.72 = 1,406.84/x
3. Step 3: Cross multiply
   2,454.78x = 3,387.72 × 1,406.84
4. Step 4: Simplify right side
   2,454.78x = 4,765,980.00
5. Step 5: Solve for x
   x = 4,765,980.00/2,454.78
6. Step 6: Final answer
   x = 1,941.51