Finding the Fourth Proportional to 3,943.89, 5,915.00 and 1,603.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,943.89 : 5,915.00 = 1,603.31 : x
2. Step 2: Convert to fraction form
   3,943.89/5,915.00 = 1,603.31/x
3. Step 3: Cross multiply
   3,943.89x = 5,915.00 × 1,603.31
4. Step 4: Simplify right side
   3,943.89x = 9,483,541.06
5. Step 5: Solve for x
   x = 9,483,541.06/3,943.89
6. Step 6: Final answer
   x = 2,404.62