Finding the Fourth Proportional to 2,403.80, 3,312.31 and 1,773.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403.80 : 3,312.31 = 1,773.32 : x
2. Step 2: Convert to fraction form
   2,403.80/3,312.31 = 1,773.32/x
3. Step 3: Cross multiply
   2,403.80x = 3,312.31 × 1,773.32
4. Step 4: Simplify right side
   2,403.80x = 5,873,800.83
5. Step 5: Solve for x
   x = 5,873,800.83/2,403.80
6. Step 6: Final answer
   x = 2,443.55