Finding the Fourth Proportional to 2,456.08, 3,389.63 and 1,407.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.08 : 3,389.63 = 1,407.94 : x
2. Step 2: Convert to fraction form
   2,456.08/3,389.63 = 1,407.94/x
3. Step 3: Cross multiply
   2,456.08x = 3,389.63 × 1,407.94
4. Step 4: Simplify right side
   2,456.08x = 4,772,380.15
5. Step 5: Solve for x
   x = 4,772,380.15/2,456.08
6. Step 6: Final answer
   x = 1,943.09