Finding the Fourth Proportional to 3,602.58, 5,401.70 and 1,408.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,602.58 : 5,401.70 = 1,408.69 : x
2. Step 2: Convert to fraction form
   3,602.58/5,401.70 = 1,408.69/x
3. Step 3: Cross multiply
   3,602.58x = 5,401.70 × 1,408.69
4. Step 4: Simplify right side
   3,602.58x = 7,609,320.77
5. Step 5: Solve for x
   x = 7,609,320.77/3,602.58
6. Step 6: Final answer
   x = 2,112.19