Finding the Fourth Proportional to 3,603.98, 5,407.54 and 1,411.95

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.98 : 5,407.54 = 1,411.95 : x
2. Step 2: Convert to fraction form
   3,603.98/5,407.54 = 1,411.95/x
3. Step 3: Cross multiply
   3,603.98x = 5,407.54 × 1,411.95
4. Step 4: Simplify right side
   3,603.98x = 7,635,176.10
5. Step 5: Solve for x
   x = 7,635,176.10/3,603.98
6. Step 6: Final answer
   x = 2,118.54