Finding the Fourth Proportional to 2,400.30, 3,310.79 and 1,603.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,400.30 : 3,310.79 = 1,603.31 : x
2. Step 2: Convert to fraction form
   2,400.30/3,310.79 = 1,603.31/x
3. Step 3: Cross multiply
   2,400.30x = 3,310.79 × 1,603.31
4. Step 4: Simplify right side
   2,400.30x = 5,308,225.79
5. Step 5: Solve for x
   x = 5,308,225.79/2,400.30
6. Step 6: Final answer
   x = 2,211.48