Finding the Fourth Proportional to 2,403.95, 3,317.31 and 1,355.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403.95 : 3,317.31 = 1,355.94 : x
2. Step 2: Convert to fraction form
   2,403.95/3,317.31 = 1,355.94/x
3. Step 3: Cross multiply
   2,403.95x = 3,317.31 × 1,355.94
4. Step 4: Simplify right side
   2,403.95x = 4,498,073.32
5. Step 5: Solve for x
   x = 4,498,073.32/2,403.95
6. Step 6: Final answer
   x = 1,871.12